Given x-y-2- then expressing x2-2 y-4 in terms of y gives

The correct option is B y2 6yx=2 y so x2 2y 4 = (2 y)2 2y 4 = y2 6y ...

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(x±a)(x±b) = x²±(a+b)x+ab.

Given x+y=2, ...

Question

Given x + y = 2, then expressing x²-2y-4 in terms of y gives

y²-6y-8

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y²-6y

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y²-6y-2

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y²+4y

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