Question

iv)Factorise −4 (x – 2y)² + 8 (x – 2y)​

Answer 1

Let's simplify step-by-step.

4(x−2y)2+8(x−2y)

Distribute:

=4x2+−16xy+16y2+(8)(x)+(8)(−2y)

=4x2+−16xy+16y2+8x+−16y

Answer:

=4x2−16xy+16y2+8x−16y

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