If x-x-1-10 and x-0 then evaluate x2-x-2A- 10B- 100C- 98D- 102

The correct option is C 98 (x + x^ 1)^2 = x^2 + x^ 2 + 2(x)(x^ 1) = 100 x^2 + x^ 2 + 2 = 100 x^2 + x^ 2 = 100 2 x^2 + x^ 2 = 98 ...

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Expansion of (x+y)^2

If x+x-1=10 a...

Question

If $x + x^{- 1} = 10$ and $x \neq 0$ then evaluate $x^{2} + x^{- 2}$ .

102

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100

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