Question

if x+y=8 and xy=15, find the value of Xsquare + Ysquare?​

Answer 1

Step-by-step explanation:

${(x + y)}^{2} = {x}^{2} + {y}^{2} + 2(xy) \\ {x}^{2} + {y}^{2} = 64 - 30 \\ = 34$

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Answer 2

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