Question

2.5. Use identities to solve the following:
(ii) (6x2 – 7y?)(6x² + 7y?)
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Answer 1

Answer:

(6x2) ^2-(7y2) ^2

36x4-49y4.................

Answer 2

$\huge\sf{\underline{\underline{Answer}}}$

$(6 {x}^{2} - 7y)(6 {x}^{2} + 7y) \\ using \: the \: identity \: (x + y)(x - y) = {x}^{2} - {y}^{2} \\ {(6 {x}^{2} )}^{2} - {(7y)}^{2} \\ 36 {x}^{4} - 49 {y}^{2}$

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@ItsMysteriousGirl