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math

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if a+b=10 and ab=16.find the value of a^2-ab+b^2 and a^2+ab+b^2

  • math -

    since (a+b)^2 = a^2 + 2ab + b^2
    10^2 = (a^2 + ab + b^2) + 16
    a^2 + ab + b^2 = 100-16 = 84

    similarly for the other

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