Given(x-y)=13 and x-y=22 find the value of x^2+y^2
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Step-by-step explanations
Weknowthat
(x+y)^2
=x^2+2xy+y^2
x^2+2xy+y^2=(x+y)^0
=>x^2+2(22)+y^2=(13)^2
=>x^2+y^2+44=169
=>x^2+y^2=169−44
=>x^2+y^2=125
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