Question

find the value of the following expression at a=1 and b=2 (1) a²+b²+3ab
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Answer 1

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☯️we need to find the value of the following expression at a=1 and b=2 (1) a²+b²+3ab.

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(1) a² + b² + 3ab.

➟ 1² + 2² + 3 × 1 × 2

➟ 1 + 4 + 6

➟ 11

hence, the value of following expression = 11

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