Question

factorise (2a+b)^2-6a-3b-4

Answer 1

Hope u like my process.
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-->(2a + b) ² - 6a - 3b - 4

= (2a +b)² - 3(2a +b) - 4

= (2a+b)² - 4(2a+b) +(2a +b) - 4

=(2a +b){(2a+b) - 4} +1{(2a+ b) - 4}

= (2a + b - 4)(2a + b +1)

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Hope this is ur required answer

Proud to help you

Answer 2

I hope it helps you..