Question

Factorise : 4(a-b)²-4(a-b)​

Answer 1

answer is 540 ok thanks a lot

Answer 2

Answer:

$4 {a}^{2} - 8ab + 4{b}^{2} - 4a + 4b$

Step-by-step explanation:

$4(a - b)^{2} - 4(a - b) \\ 4(a - b)(a - b) - 4(a - b) \\ 4(a(a - b) + (a - b) - b) - (4a - b) \\4( {a}^{2} - ab + (a - b) (- b)) - 4(a - b) \\ 4 {a}^{2} - 8ab + 4{b}^{2} - 4a + 4b$