Question

Factorise 2a+6b-3(a+3b)² want the answer with step by step explanation ​

Answer 1

$2+6−3(+3)^2 \\ \\ 2+6−3(+3)(+3) \\ \\ 2+6−3((+3)+3(+3)) \\ \\ 2+6−3(^2+3+3(+3)) \\ \\ 2+6−3(^2+3+3+9^2) \\ \\ 2+6−3(^2+6+9^2) \\ \\ 2+6−32−18−272 \\ \\ −3^2−18−27^2+2+6 \: answer$

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