El profesor se sorprenderá mucho al ver tu solución correcta😉
2 2 x - 8*x + y + 2*y = -7
a*x^2 + b*x + c = 0
D = b^2 - 4 * a * c =
(-8)^2 - 4 * (1) * (7 + y^2 + 2*y) = 36 - 8*y - 4*y^2
x1 = (-b + sqrt(D)) / (2*a)
x2 = (-b - sqrt(D)) / (2*a)
suma
________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ / 2 / / 2 2 \\ / 2 / / 2 2 \\ / 2 / / 2 2 \\ / 2 / / 2 2 \\ 4 / 2 / 2 2 \ |atan2\-2*im(y) - 2*im(y)*re(y), 9 + im (y) - re (y) - 2*re(y)/| 4 / 2 / 2 2 \ |atan2\-2*im(y) - 2*im(y)*re(y), 9 + im (y) - re (y) - 2*re(y)/| 4 / 2 / 2 2 \ |atan2\-2*im(y) - 2*im(y)*re(y), 9 + im (y) - re (y) - 2*re(y)/| 4 / 2 / 2 2 \ |atan2\-2*im(y) - 2*im(y)*re(y), 9 + im (y) - re (y) - 2*re(y)/| 4 - \/ (-2*im(y) - 2*im(y)*re(y)) + \9 + im (y) - re (y) - 2*re(y)/ *cos|--------------------------------------------------------------| - I*\/ (-2*im(y) - 2*im(y)*re(y)) + \9 + im (y) - re (y) - 2*re(y)/ *sin|--------------------------------------------------------------| + 4 + \/ (-2*im(y) - 2*im(y)*re(y)) + \9 + im (y) - re (y) - 2*re(y)/ *cos|--------------------------------------------------------------| + I*\/ (-2*im(y) - 2*im(y)*re(y)) + \9 + im (y) - re (y) - 2*re(y)/ *sin|--------------------------------------------------------------| \ 2 / \ 2 / \ 2 / \ 2 /
=
8
producto
/ ________________________________________________________________ ________________________________________________________________ \ / ________________________________________________________________ ________________________________________________________________ \ | / 2 / / 2 2 \\ / 2 / / 2 2 \\| | / 2 / / 2 2 \\ / 2 / / 2 2 \\| | 4 / 2 / 2 2 \ |atan2\-2*im(y) - 2*im(y)*re(y), 9 + im (y) - re (y) - 2*re(y)/| 4 / 2 / 2 2 \ |atan2\-2*im(y) - 2*im(y)*re(y), 9 + im (y) - re (y) - 2*re(y)/|| | 4 / 2 / 2 2 \ |atan2\-2*im(y) - 2*im(y)*re(y), 9 + im (y) - re (y) - 2*re(y)/| 4 / 2 / 2 2 \ |atan2\-2*im(y) - 2*im(y)*re(y), 9 + im (y) - re (y) - 2*re(y)/|| |4 - \/ (-2*im(y) - 2*im(y)*re(y)) + \9 + im (y) - re (y) - 2*re(y)/ *cos|--------------------------------------------------------------| - I*\/ (-2*im(y) - 2*im(y)*re(y)) + \9 + im (y) - re (y) - 2*re(y)/ *sin|--------------------------------------------------------------||*|4 + \/ (-2*im(y) - 2*im(y)*re(y)) + \9 + im (y) - re (y) - 2*re(y)/ *cos|--------------------------------------------------------------| + I*\/ (-2*im(y) - 2*im(y)*re(y)) + \9 + im (y) - re (y) - 2*re(y)/ *sin|--------------------------------------------------------------|| \ \ 2 / \ 2 // \ \ 2 / \ 2 //
=
2 2 7 + re (y) - im (y) + 2*re(y) + 2*I*im(y) + 2*I*im(y)*re(y)
7 + re(y)^2 - im(y)^2 + 2*re(y) + 2*i*im(y) + 2*i*im(y)*re(y)
________________________________________________________________ ________________________________________________________________ / 2 / / 2 2 \\ / 2 / / 2 2 \\ 4 / 2 / 2 2 \ |atan2\-2*im(y) - 2*im(y)*re(y), 9 + im (y) - re (y) - 2*re(y)/| 4 / 2 / 2 2 \ |atan2\-2*im(y) - 2*im(y)*re(y), 9 + im (y) - re (y) - 2*re(y)/| x1 = 4 - \/ (-2*im(y) - 2*im(y)*re(y)) + \9 + im (y) - re (y) - 2*re(y)/ *cos|--------------------------------------------------------------| - I*\/ (-2*im(y) - 2*im(y)*re(y)) + \9 + im (y) - re (y) - 2*re(y)/ *sin|--------------------------------------------------------------| \ 2 / \ 2 /
________________________________________________________________ ________________________________________________________________ / 2 / / 2 2 \\ / 2 / / 2 2 \\ 4 / 2 / 2 2 \ |atan2\-2*im(y) - 2*im(y)*re(y), 9 + im (y) - re (y) - 2*re(y)/| 4 / 2 / 2 2 \ |atan2\-2*im(y) - 2*im(y)*re(y), 9 + im (y) - re (y) - 2*re(y)/| x2 = 4 + \/ (-2*im(y) - 2*im(y)*re(y)) + \9 + im (y) - re (y) - 2*re(y)/ *cos|--------------------------------------------------------------| + I*\/ (-2*im(y) - 2*im(y)*re(y)) + \9 + im (y) - re (y) - 2*re(y)/ *sin|--------------------------------------------------------------| \ 2 / \ 2 /
x2 = i*((-2*re(y)*im(y) - 2*im(y))^2 + (-re(y)^2 - 2*re(y) + im(y)^2 + 9)^2)^(1/4)*sin(atan2(-2*re(y)*im(y) - 2*im(y, -re(y)^2 - 2*re(y) + im(y)^2 + 9)/2) + ((-2*re(y)*im(y) - 2*im(y))^2 + (-re(y)^2 - 2*re(y) + im(y)^2 + 9)^2)^(1/4)*cos(atan2(-2*re(y)*im(y) - 2*im(y), -re(y)^2 - 2*re(y) + im(y)^2 + 9)/2) + 4)