Question

fast as possible guys correct answer needed. full steps​

Answer 1

$( 7a {}^{2} - 1)(7a {}^{2} - 1)$

$49 {a}^{4} - 7 {a}^{2} - 7 {a}^{2} + 1$

$49 {a}^{4} - 14 {a}^{2} + 1$

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