If x+1/x=5, evaluate x square+1/x square
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x+1/x=5
square on both sides
x^2 + 1/x^2 +2(x)(1/x)=25
x^2 + 1/x^2 +2=25
x^2 + 1/x^2 =25-2=23 is answer
square on both sides
x^2 + 1/x^2 +2(x)(1/x)=25
x^2 + 1/x^2 +2=25
x^2 + 1/x^2 =25-2=23 is answer
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