Question

Factorise 4a²-4ab+b²-4x² with process

Answer 1

Answer:

4a

2

−4ab+b

2

−4x

2

=(2a)

2

−2(2a)b+b

2

−(2x)

2

=(2a−b)

2

−(2x)

2

=(2a−b+2x)(2a−b−2x)