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  • 24. If a-b= 12 and ab = 14, find a2 + ab + b2.

24. If a-b= 12 and ab = 14, find a2 + ab + b2.

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best_answer

(a-b)^2 = 12^2

a^2 + b^2 - 2ab = 144

a^2 + b^2 - 2 x 14 = 144

a^2 + b^2 - 28 = 144 

a^2 + b^2  = 144 + 28

a^2 + b^2  = 172

a^2 + b^2 +ab = 172 +ab

a^2 + b^2 +ab = 186

Posted by

Suraj Bhandari

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