if X + Y is equal to 4 then the value of x to the power 3 + Y to the power 3 + 12 X Y is equal to
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Step-by-step explanation:
X + Y = 4……………(1)
and,X³+Y³+12XY = X³+Y³+3×4(XY)
=X³+Y³+3XY(X+Y) {From 1}
= (X+Y)³ = 4³ = 64
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