Question

Simplify (2x2 + y2)(x - 2y)

Answer 1

(a+b)*(c-d) = a*c-a*d + b*c - b*d
This applies whatever a or b is.
a can be for example: 2x^2
and b can be: y^2.

Answer 2

\[2x ^{3}-4x ^{2}y+xy ^{2}-2y ^{3}\]