Question

1. Phân tích thành nhân tử:

a³ - a²x - ay + xy

Answer 1

=(a^3-a^2x)-(ay-xy)

=a^2(a-x)-y(a-x)

=(a^2-y)(a-x)

Answer 2

\(a^3-a^2x-ay+xy\)

\(=\left(a^3-a^2x\right)-\left(ay-xy\right)\)

\(=a^2\left(a-x\right)-y\left(a-x\right)\)

\(=\left(a^2-y\right)\left(a-x\right)\)