Given that (x+2) is a factor of x^3+8, find the other quadratic factor.

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asked Oct 3, 2018 31.7k views

1 Answer

Mnacos · Answer 1 · 2018-10-09T23:12:56+0000

If you know the formular a^3+b^3=(a+b)(a^2-ab+b^2), you can solve this problem.
8 is 2 cubed, so x^3+2^3=(x+2)(x^2-2x+4)
so the other quadratic factor is x^2-2x+4

Given that (x+2) is a factor of x^3+8, find the other quadratic factor.

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