Question

vi)
4(x - y)2 - 12(x - y) +9​

Answer 1

Answer:

4(x-y)² - 12(x-y) + 9

= [2(x-y)]² - 2 ×2(x-y)×3 + 3²

= [ 2(x-y) - 3]²

$\boxed { \pink { a^{2} - 2ab + b^{2} = (a-b)^{2} }}$

= ( 2x - 2y - 3 )²

= (2x-2y-3)(2x-2y-3)

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