Question

(2x - y)2 - 18(2x - y) + 72 factorise ​

Answer 1

Step-by-step explanation:

let 2x-y be 'a'

then, the expression would be

a^ - 18a +72

= a^-12a-6a+72

a(a+12) +6(a+12)

(a+6)(a+12)

Hope it helps u