Question

(5a+6b)^2
find the ans
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Answer 1

Answer:

(5a+6b)²

{(a+b)²= a²+ 2ab+b²}

(5a)²+2(5a)(6b)+(6b)²

25a²+60ab+36b²

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Answer 2

(5a+6b)^2

Using the identity ,

(a+b)^2 = a^2 + 2ab + b^2

=> (5a)^2 + 2×5a×6b + (6b)^2

=> 25a^2 + 60ab + 36b^2 Ans.

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