x3 + 8
= x3 + 23
= (x + 2)[x2 - (x)(2) + 22]
= (x + 2) (x2 - 2x + 4)
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x3 + 3x2 - 6x - 8 = (x - 2)(x2 + 5x + 4) = (x - 2)(x + 1)(x + 4)
X3 + 8= (x+2)(x2-2x+4)
x2 + 6x + 8 =(x + 2)(x +4)
Find factors of 8 that add up to 6. (x + 2)(x + 4)
(x + 12)(x - 8)