Question

Hello

Factorise :

$4(x - y) ^{2} - 12(x - y) + 9$
Answer please ❤️​

Answer 1

let (x-y) be a

so,

$4a {}^{2} - 12a + 9 \\ 4a {}^{2} - 6a - 6a + 9 \\ \\ 2a(2a - 3) - 3(2a - 3) \\ (2a - 3)(2a - 3)$

Answer 2

Ello!❤️

$4(x - y) ^{2} - 12(x - y) + 9$

Let xy be a

So,

$4 {a}^{2} - 12a + 9$

$2a ^{2} - 2(2a)(3) + {3}^{2}$

$(2a - 3) ^{2}$

$(2a - 3)(2a - 3)$

Glad to help❤️