Simplify- 2a2-1a2-a-1a-7-

Now, 2(a^2+1a^2) (a 1a) 7 =2(a 1a)^2+4 (a 1a) 7 [ Since (a^2+b^2)=(a b)^2+2ab ] =2(a 1a)^2 (a 1a) 3 =2(a 1a)^2 3(a 1a)+2(a 1a) 3 =( ...

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Factorisation by Common Factors

Simplify: 2a...

Question

Simplify:
$2 (a^{2} + \frac{1}{a^{2}}) - (a - \frac{1}{a}) - 7$ .

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Solution

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