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How much is a2 + 2ab + b2 more than a2 – 2ab + b2 ? A) -4ab B) 4ab C) 6abD) -3ab |
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Answer» Correct option is (B) 4ab \(\because\) \((a^2 + 2ab + b^2)\) \(-(a^2 – 2ab +b^2)\) = 4ab \(\therefore\) \(a^2 + 2ab + b^2\) is 4ab more than \(a^2 – 2ab +b^2.\) Correct option is B) 4ab |
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