If X+Y =12 and XY =5, Find X square +Y square
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Answer:
134
Step-by-step explanation:
x+y = 12
xy = 5
(x + y)square = x square + y square + 2xy
12 square = x square + y square + 2*5
144 = x square + y square + 10
x square + y square = 144-10
x square + y square = 134.
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