Question

How do you multiply `(5p-6q)^2`?

Answer 1

`25p^2-50pq+25q^2`

Explanation:

Given -

`(5p-5q)^2`

Treat it as `(a+b)^2` whose value is `a^2-2ab+b^2`

`(5p)^2-(2xx5pxx5q)+(-5q)^2`

`25p^2-50pq+25q^2`