Question

(a+b)^{2}-9c^{2} solve it....​

Answer 1

$(a+b)^{2}-9c^{2} \\(a+b)^{2}-3c^{2} \\ (a+b+3c)(a+b-3c) Answer$

Answer 2

Answer:

$\huge\boxed{\fcolorbox{red}{pink}{Your's Answer}}$

According to question:-

Solve:

$( {a + b})^{2} - ( {9c})^{2}$

Using Identity:

${a}^{2} - {b}^{2} = (a + b)(a - b)$

$= (a + b + 9c)(a + b - 9c)$

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