How do you factor 4x3 16x2 36x-144?

Answer 1

4x^(2)(x - 4) + 36(x - 4)

(x - 4) is a common factor to both terms, hence

(4x^(2) + 36)(x - 4)

4(x^(2) + 9)(x - 4) Done!!!!

NB x^(2) + 9 does NOT factor .

Answer 2

The answer varies depending on the missing operational signs. One possibility:

4x3 - 16x2 + 36x - 144 = 4(x - 4)(x2 + 9)