Question

Factories the following ​

Answer 1

Step-by-step explanation:

$a^{2} + 1/a^2 - 2$

$= a^2 - 2(a^2)(1/a^2) +1/a^2\\= (a - 1/a)^2$

$x^{2} + x + 1/4\\= x^{2} + 2(1/2) x + (1/2)^2\\= (x + 1/2)^2$

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