El profesor se sorprenderá mucho al ver tu solución correcta😉
/ ___ \ / 2 \ \\/ x - 6/*\2*x - x - 15/ = 0
suma
3 - 5/2 + 36
=
73/2
producto
3*(-5) ------*36 2
=
-270
-270
x1 = -5/2
x2 = 3
x3 = 36
x3 = 36
x1 = -2.5
x2 = 3.0
x3 = 36.0
x4 = -2.5 - 3.19181816302611e-19*i
x5 = -2.50000000000002 - 1.34908062879273e-15*i
x6 = -2.5 + 3.29399761602204e-17*i
x6 = -2.5 + 3.29399761602204e-17*i