pls answer this step by step
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Step-by-step explanation:
x+y = 4
xy = 2
(x+y)^2 = x^2 + y^2 +2xy
4^2 = x^2+y^2 + 2(2)
16= x^2 + y ^2 + 4
x^2 + y^2 = 12
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