3(x-y)^2 - 4x + 4y - 4
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Step-by-step explanation:
Given
= 3(x-y)² - 4x+ 4y -4
It can be written as
= 3(x-y)² -4(x-y) -4
Assume (x-y)= a
Now , we get
= 3a²- 4a- 4
By middle term splitting method we get
= 3a²-6a+2a-4
= 3a(a-2)+2(a-2)
= (3a+2)(a-2)
Now put the value of a= (x-y)
= (3(x-y)+2)((x-y)-2)
Hope this helps you
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