Question

X + y whole square - 4 x y

Answer 1

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here's your answer

(x+y)^2 - 4xy
=(x)^2 + 2×x×y + y^2 -4xy
=x^2 + 2xy + y^2 - 4xy
=x^2 -4xy +y^2
=x^2 - (2+2)xy + y^2
=x^2 - 2xy -2xy + y^2
=2x (x-y) -2y (x-y)
=(x-y) (2x - 2y)

HOPE IT HELPS YOU

Answer 2

Answer:Given (x - y)^2 - 4(x - y) - 45 can be written as

         x^2 - 2xy - 4x + y^2 + 4y - 45

        (x - y - 9) ( x - y + 5)

       x - y = 9 (or) x - y = -5.

Step-by-step explanation: