Question

How do you factor x^4 + 7x^3 - 8x - 56 = 0 ?

Answer 1

we have x⁴+7x³-8x-56=0

so, by taking common,

x³(X+7)-8(X+7)=0

(x³-8)(X+7)

so, one possible value is x³=8, or X=2

or another will be X= -7

hope it helps u.

please mArK it as brainlist..friend...