El profesor se sorprenderá mucho al ver tu solución correcta😉
3 2 - x - 3*x + 14*x + 28 = 0
/ 1 \ / / 1 \ \ 17*re|--------------------------------------| |17*im|--------------------------------------| / / _______\\ / / _______\\| / / _______\\ / / _______\\ | _________________ | | | _________________ | | |\/ 11823 || | |\/ 11823 ||| | |\/ 11823 || | |\/ 11823 || | / _______ / ___\| | | / _______ / ___\| |atan|---------|| |atan|---------||| |atan|---------|| |atan|---------|| | / I*\/ 11823 | 1 I*\/ 3 || | | / I*\/ 11823 | 1 I*\/ 3 || ____ | \ 54 /| ____ | \ 54 /|| ____ | \ 54 /| ____ | \ 54 /| |3 / 6 + ----------- *|- - - -------|| | |3 / 6 + ----------- *|- - - -------|| \/ 17 *cos|---------------| \/ 51 *sin|---------------|| \/ 17 *sin|---------------| \/ 51 *cos|---------------| \\/ 9 \ 2 2 // | \\/ 9 \ 2 2 // \ 3 / \ 3 /| \ 3 / \ 3 / x1 = -1 + --------------------------------------------- + I*|--------------------------------------------- - --------------------------- - ---------------------------| + --------------------------- - --------------------------- 3 \ 3 2 6 / 2 6
/ 1 \ / / 1 \ \ 17*re|--------------------------------------| |17*im|--------------------------------------| / / _______\\ / / _______\\| / / _______\\ / / _______\\ | _________________ | | | _________________ | | |\/ 11823 || | |\/ 11823 ||| | |\/ 11823 || | |\/ 11823 || | / _______ / ___\| | | / _______ / ___\| |atan|---------|| |atan|---------||| |atan|---------|| |atan|---------|| | / I*\/ 11823 | 1 I*\/ 3 || | | / I*\/ 11823 | 1 I*\/ 3 || ____ | \ 54 /| ____ | \ 54 /|| ____ | \ 54 /| ____ | \ 54 /| |3 / 6 + ----------- *|- - + -------|| | |3 / 6 + ----------- *|- - + -------|| \/ 17 *cos|---------------| \/ 51 *sin|---------------|| \/ 17 *sin|---------------| \/ 51 *cos|---------------| \\/ 9 \ 2 2 // | \\/ 9 \ 2 2 // \ 3 / \ 3 /| \ 3 / \ 3 / x2 = -1 + --------------------------------------------- + I*|--------------------------------------------- + --------------------------- - ---------------------------| - --------------------------- - --------------------------- 3 \ 3 2 6 / 2 6
_________________ / _______ / I*\/ 11823 17 x3 = -1 + 3 / 6 + ----------- + ------------------------ \/ 9 _________________ / _______ / I*\/ 11823 3*3 / 6 + ----------- \/ 9
x3 = -1 + 17/(3*(6 + sqrt(11823)*i/9)^(1/3)) + (6 + sqrt(11823)*i/9)^(1/3)
suma
/ 1 \ / / 1 \ \ / 1 \ / / 1 \ \ 17*re|--------------------------------------| |17*im|--------------------------------------| / / _______\\ / / _______\\| / / _______\\ / / _______\\ 17*re|--------------------------------------| |17*im|--------------------------------------| / / _______\\ / / _______\\| / / _______\\ / / _______\\ | _________________ | | | _________________ | | |\/ 11823 || | |\/ 11823 ||| | |\/ 11823 || | |\/ 11823 || | _________________ | | | _________________ | | |\/ 11823 || | |\/ 11823 ||| | |\/ 11823 || | |\/ 11823 || | / _______ / ___\| | | / _______ / ___\| |atan|---------|| |atan|---------||| |atan|---------|| |atan|---------|| | / _______ / ___\| | | / _______ / ___\| |atan|---------|| |atan|---------||| |atan|---------|| |atan|---------|| | / I*\/ 11823 | 1 I*\/ 3 || | | / I*\/ 11823 | 1 I*\/ 3 || ____ | \ 54 /| ____ | \ 54 /|| ____ | \ 54 /| ____ | \ 54 /| | / I*\/ 11823 | 1 I*\/ 3 || | | / I*\/ 11823 | 1 I*\/ 3 || ____ | \ 54 /| ____ | \ 54 /|| ____ | \ 54 /| ____ | \ 54 /| _________________ |3 / 6 + ----------- *|- - - -------|| | |3 / 6 + ----------- *|- - - -------|| \/ 17 *cos|---------------| \/ 51 *sin|---------------|| \/ 17 *sin|---------------| \/ 51 *cos|---------------| |3 / 6 + ----------- *|- - + -------|| | |3 / 6 + ----------- *|- - + -------|| \/ 17 *cos|---------------| \/ 51 *sin|---------------|| \/ 17 *sin|---------------| \/ 51 *cos|---------------| / _______ \\/ 9 \ 2 2 // | \\/ 9 \ 2 2 // \ 3 / \ 3 /| \ 3 / \ 3 / \\/ 9 \ 2 2 // | \\/ 9 \ 2 2 // \ 3 / \ 3 /| \ 3 / \ 3 / / I*\/ 11823 17 -1 + --------------------------------------------- + I*|--------------------------------------------- - --------------------------- - ---------------------------| + --------------------------- - --------------------------- + -1 + --------------------------------------------- + I*|--------------------------------------------- + --------------------------- - ---------------------------| - --------------------------- - --------------------------- + -1 + 3 / 6 + ----------- + ------------------------ 3 \ 3 2 6 / 2 6 3 \ 3 2 6 / 2 6 \/ 9 _________________ / _______ / I*\/ 11823 3*3 / 6 + ----------- \/ 9
=
/ 1 \ / 1 \ / / 1 \ \ / / 1 \ \ 17*re|--------------------------------------| 17*re|--------------------------------------| |17*im|--------------------------------------| / / _______\\ / / _______\\| |17*im|--------------------------------------| / / _______\\ / / _______\\| / / _______\\ | _________________ | | _________________ | | | _________________ | | |\/ 11823 || | |\/ 11823 ||| | | _________________ | | |\/ 11823 || | |\/ 11823 ||| | |\/ 11823 || | / _______ / ___\| | / _______ / ___\| | | / _______ / ___\| |atan|---------|| |atan|---------||| | | / _______ / ___\| |atan|---------|| |atan|---------||| |atan|---------|| _________________ | / I*\/ 11823 | 1 I*\/ 3 || | / I*\/ 11823 | 1 I*\/ 3 || | | / I*\/ 11823 | 1 I*\/ 3 || ____ | \ 54 /| ____ | \ 54 /|| | | / I*\/ 11823 | 1 I*\/ 3 || ____ | \ 54 /| ____ | \ 54 /|| ____ | \ 54 /| / _______ |3 / 6 + ----------- *|- - + -------|| |3 / 6 + ----------- *|- - - -------|| | |3 / 6 + ----------- *|- - + -------|| \/ 17 *cos|---------------| \/ 51 *sin|---------------|| | |3 / 6 + ----------- *|- - - -------|| \/ 17 *cos|---------------| \/ 51 *sin|---------------|| \/ 51 *cos|---------------| / I*\/ 11823 17 \\/ 9 \ 2 2 // \\/ 9 \ 2 2 // | \\/ 9 \ 2 2 // \ 3 / \ 3 /| | \\/ 9 \ 2 2 // \ 3 / \ 3 /| \ 3 / -3 + 3 / 6 + ----------- + ------------------------ + --------------------------------------------- + --------------------------------------------- + I*|--------------------------------------------- + --------------------------- - ---------------------------| + I*|--------------------------------------------- - --------------------------- - ---------------------------| - --------------------------- \/ 9 _________________ 3 3 \ 3 2 6 / \ 3 2 6 / 3 / _______ / I*\/ 11823 3*3 / 6 + ----------- \/ 9
producto
/ / 1 \ / / 1 \ \ \ / / 1 \ / / 1 \ \ \ | 17*re|--------------------------------------| |17*im|--------------------------------------| / / _______\\ / / _______\\| / / _______\\ / / _______\\| | 17*re|--------------------------------------| |17*im|--------------------------------------| / / _______\\ / / _______\\| / / _______\\ / / _______\\| | | _________________ | | | _________________ | | |\/ 11823 || | |\/ 11823 ||| | |\/ 11823 || | |\/ 11823 ||| | | _________________ | | | _________________ | | |\/ 11823 || | |\/ 11823 ||| | |\/ 11823 || | |\/ 11823 ||| | | / _______ / ___\| | | / _______ / ___\| |atan|---------|| |atan|---------||| |atan|---------|| |atan|---------||| | | / _______ / ___\| | | / _______ / ___\| |atan|---------|| |atan|---------||| |atan|---------|| |atan|---------||| | | / I*\/ 11823 | 1 I*\/ 3 || | | / I*\/ 11823 | 1 I*\/ 3 || ____ | \ 54 /| ____ | \ 54 /|| ____ | \ 54 /| ____ | \ 54 /|| | | / I*\/ 11823 | 1 I*\/ 3 || | | / I*\/ 11823 | 1 I*\/ 3 || ____ | \ 54 /| ____ | \ 54 /|| ____ | \ 54 /| ____ | \ 54 /|| / _________________ \ | |3 / 6 + ----------- *|- - - -------|| | |3 / 6 + ----------- *|- - - -------|| \/ 17 *cos|---------------| \/ 51 *sin|---------------|| \/ 17 *sin|---------------| \/ 51 *cos|---------------|| | |3 / 6 + ----------- *|- - + -------|| | |3 / 6 + ----------- *|- - + -------|| \/ 17 *cos|---------------| \/ 51 *sin|---------------|| \/ 17 *sin|---------------| \/ 51 *cos|---------------|| | / _______ | | \\/ 9 \ 2 2 // | \\/ 9 \ 2 2 // \ 3 / \ 3 /| \ 3 / \ 3 /| | \\/ 9 \ 2 2 // | \\/ 9 \ 2 2 // \ 3 / \ 3 /| \ 3 / \ 3 /| | / I*\/ 11823 17 | |-1 + --------------------------------------------- + I*|--------------------------------------------- - --------------------------- - ---------------------------| + --------------------------- - ---------------------------|*|-1 + --------------------------------------------- + I*|--------------------------------------------- + --------------------------- - ---------------------------| - --------------------------- - ---------------------------|*|-1 + 3 / 6 + ----------- + ------------------------| \ 3 \ 3 2 6 / 2 6 / \ 3 \ 3 2 6 / 2 6 / | \/ 9 _________________| | / _______ | | / I*\/ 11823 | | 3*3 / 6 + ----------- | \ \/ 9 /
=
/ / / _______\\ / / _______\\\ | | |\/ 11823 || | |\/ 11823 ||| / __________________ / _____________________\\ | |2*atan|---------|| |atan|---------||| | 2/3 3 / _______ | 3 / _______ || | | \ 54 /| ____ | \ 54 /|| \17*3 + \/ 54 + I*\/ 11823 *\-3 + \/ 162 + 3*I*\/ 11823 //*|-168 + 408*cos|-----------------| + 24*\/ 51 *cos|---------------|| \ \ 3 / \ 3 // -------------------------------------------------------------------------------------------------------------------------------------- __________________ 3 / _______ 108*\/ 54 + I*\/ 11823
(17*3^(2/3) + (54 + i*sqrt(11823))^(1/3)*(-3 + (162 + 3*i*sqrt(11823))^(1/3)))*(-168 + 408*cos(2*atan(sqrt(11823)/54)/3) + 24*sqrt(51)*cos(atan(sqrt(11823)/54)/3))/(108*(54 + i*sqrt(11823))^(1/3))
x1 = 3.43885143209577
x2 = -1.72863784621664
x3 = -4.71021358587913
x3 = -4.71021358587913