Question

Factor ax^2−ay−bx^2+cy+by−cx^2

Answer 1

ax^2−ay−bx^2+cy+by−cx^2
$a\left(x^2-y\right)-bx^2+by+cy-cx^2$
$a\left(x^2-y\right)+b\left(y-x^2\right)+cy-cx^2$
$\left(x^2-y\right)\left(a-b\right)+cy-cx^2$
$\left(x^2-y\right)\left(a-b\right)+c\left(y-x^2\right)$
$\left(x^2-y\right)\left(a-b-c\right)$