Question

Factorise a²-(2a+3b)²
The answer is -3(a+b)(a+3b)​

Answer 1

Answer:

$a^{2}-(2a+3b)^{2} 【this \:is \:the\: identity \:of\: [a^{2}-b^{2} ] 】$

$=>(a+2a+3b)(a-2a+3b) \\ =>( 3a+3b )(a+3b) \\=> -3(a+b)(a+3b) \:answer.$

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Answer 2

Answer:

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