If x+y= 12 and xy equals 50, what does x squared plus y squared equal to?
Answers
Answered by
saim
(x+y)^2= x^2 + y^2 + 2xy
so add the values
12^2=x^2 + y^2 + 100
x^2+y^2=44
so add the values
12^2=x^2 + y^2 + 100
x^2+y^2=44
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