ab= 8 a+b=6 find (a^2+b^2)
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hope it helps ...... :)
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math65:
sorry but the answer is 20 :) you have to put -2ab
oh! sorry
Answered by
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a^2+b^2 = [a+b]^2-2ab
= 6^2 - 2×8
= 36-16=20
= 6^2 - 2×8
= 36-16=20
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