Question

Find the roots of the polynomial equation.

x3 - 2x2 + 10x + 136 = 0
A. 3 ± 5i, –4
B. 3 ± i, 4
C. –3 ± 5i, –4
D. –3 ± i, 4

Answer 1

@bibby

Answer 2

Have you tried dividing the polynomial by -4 or 4 (using long or synthetic division) ?

Answer 3

yes, but i dont think my answer choices are right.. or either im doing it wrong.

Answer 4

it's A

Answer 5

thank you!

Answer 6

no problem!