Question

How do you factor `x^3-4x^2+20-5x`?

Answer 1

`(x^2 - 5)(x-4)`

Explanation:

First arrange in this way :- #x^3 -4x^2 -5x +20 = x^2(x - 4) - 5(x - 4) = (x^2-5)(x-4)#