Question

Select one of the factors of x^3 y^2+8xy^2−5x^2−40.

a. (xy^2 + 5)
b. (x^2 + 4)
c. (xy^2 − 5)
d. (x^2 − 8)

Answer 1

factor by regrouping: xy²(x²+8)-5(x²+8)
(x²+8)(xy²-5)
so C is the correct answer.