if a+b =10 and ab=16 then find a^2+ab+b^2
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a+b=10
(a+b)^2=100
a^2+2ab+b^2=100
a^2+ab+b^2=100-ab
=100-16=84
(a+b)^2=100
a^2+2ab+b^2=100
a^2+ab+b^2=100-ab
=100-16=84
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