Question

4(x - y)2 - 12(x - y) + 9 factorise ...​

Answer 1

Step-by-step explanation:

4(x-y)² - 12(x-y) + 9

= (2(x-y))² - 2×3×2(x-y) + 3²

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

Answer 2

Answer:

(-4X)+4Y+9

Step-by-step explanation:

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