Question

Factor the polynomial and find all (real and complex) roots:

x^3+x^2-7x-7

Answer 1

Hint: to start, try factoring by grouping
(x^3 + x^2) + (-7x - 7)
^ ^
and get a common factor to take out.

Answer 2

i end up stuck at:
x^2(x)-7(x)

Answer 3

Yes. Just like we did the last one. Factor x^2 from the first two terms and factor -7 from the last two terms.