factorize completely: (a) x^3+2x^2-2x-2

factorize completely:

(a) x^3+2x^2-2x-2
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1 Answer

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

the exponent of 3 is the highest , therefore there should be 3 roots, they can be real or imaginery.  There are no real roots because the possible answers are 1,-1,2,-2.

I used synthetic division to prove these are not roots.
by Level 10 User (55.7k points)

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