If (a + b) = 6 and ab = 4, find a2+ b2?
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Answer:
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Answered by
1
Given,
a+b=6
ab=4
a^2+b^2=?
Solution,
(a+b)^2=a^2+b^2+2ab
6^2=a^2+b^2+2(4)
36-8=a^2+b^2
a^2+b^2=28
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