Question

This one is of algebra but to factorize please send with step by step with pic

Answer 1

Answer:

$49 {x}^{4} - 100 {y}^{4} \\ = {(7 {x}^{2}) }^{2} - {(10 {y}^{2} )}^{2} \\ =( 7 {x}^{2} + 10 {y}^{2} )(7 {x}^{2} - 10 {y}^{2} )$

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