Question

How do you multiply `(2x-6y)^2`?

Answer 1

`4x^2 -24xy+36y^2`

Explanation:

`(2x-6y)^2 = (2x-6y)(2x-6y) = 2x(2x-6y)-6y(2x-6y)`

=`4x^2 -12xy -12xy+36y^2`

=`4x^2 -24xy+36y^2`