Question

How do you factor `3a(x-y) + 2b(y^2-x^2)`?

Answer 1

Rewrite this

#3a(x-y) + 2b(y^2-x^2)=3a(x-y)-2b(x^2-y^2)= 3a(x-y)-2b(x-y)(x+y)= (x-y)*[3a-2b(x+y)]#