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If (x+y)^(2)=36 and xy= -7, findthe value of x^(2)+y^(2)
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4 votes
If
(x+y)^(2)=36 and xy= -7, findthe value of
x^(2)+y^(2)

User Zwiebel
by
7.8k points

1 Answer

5 votes


(x + y)^2 = 36



x^2 + 2xy + y^2 = 36



x^2+ y^2 = 36 - 2xy = 36- 2(-7)= 36+14=50


Answer: 50




User Tim Stack
by
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