Given x + y = - 5, xy = 7, find the value of X 2Y + X y2-x-y | Math enthusiast | Mathematical art

Given x + y = - 5, xy = 7, find the value of X 2Y + X y2-x-y

X2Y + xy2-x-y = XY (x + y) - (x + y) = (x + y) (XY-1) ∵ x + y = - 5, xy = 7, the original formula = - 5 × (7-1) = - 30

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