Question

How do you find the product of `(x-2y)^2`?

Answer 1

Write the square out as a multiplication and apply the distributive property as follows:

`(x - 2y)^2`

`= (x - 2y) xx (x - 2y)`

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

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

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