Question

Factorise (x - 2y)2 -5(x - 2y) + 6
​

Answer 1

(x-2y-8)(x-2y-4)

Explanation:

Let (x-2y) = x

x^2 -12x +32

Then factor the quadratic polynomial by 2 brackets factoring.

(x-8)(x-4)

Then convert x to (x-2y)

(x-2y-8)(x-2y-4)