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Question

Solve (6+3)2

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Solution

According to the identity,
(a+b)2 = a+b+2√a ×√b
so, we can write the given expression as:
(6+3)2 = 6+3+2√6×√3
= 9+2√18
= 9+2×3√2
= 9+6√2


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