If x+1/x=3 ,find the value of x^2 +1/ x^2
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First square on both sides
(x+1/x) ²=3²
x²+1/x²+2=9
x²+1/x²=9-2
x²+1/x²=7
(x+1/x) ²=3²
x²+1/x²+2=9
x²+1/x²=9-2
x²+1/x²=7
Answered by
1
it squarring both sides
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