Question

Select one of the factors of x3y2 + 8xy2 - 5x2 - 40.
A.(xy2 + 5)
b.(x2 + 4)
c.(xy2 - 5)
d.(x2 - 8)

Answer 1

So this is what you want to factor:
x^3y^2 + 8xy^2 – 5x^2 – 40

1.) xy^2 ( x^2 + 8) -5( x^2 + 8)

2.) ( xy^2 - 5) ( x^2 + 8)

= ( xy^2 - 5)