Question

help with math review
list all possible real roots, then solve each of the polynomial equations over the complex numbers.
8. x^3-7x^2-x+7=0
9. x^4+x^3-6x^2-14x-12=0

Answer 1

8. x= 1, -1, 7
x^3 -7x^2-x=7

9. x= -2, 3, -1+ i, -1-i
x^4 + x^3 -6x^2 -14x=12

Answer 2

thanks