Question

factorise x cube minus 4 x square - 4 x + 16
$x3 - 4x2 - 4x + 16$
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Answer 1

Answer:

.....

x^3-4x^2-4x+16

x^2(x-4)-4(x-4)

(x^2-4) (x-4)

bcoz. [ a^2-b^2 = (a+b)(a-b)]

therefore

(x-4) (x+4) (x-4)

hope it's helpful.....