If (a+b)= 9, ab=5 Find the value of a2+b2
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Answered by
0
09432112456778999854457899...
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Answered by
1
Answer:
71
Step-by-step explanation:
(a+b)^2 = a^2+b^2+2ab
9^2 = a^2 + b^2 + 2(5)
81 - 10= a^2 + b^2
71 = a^2 + b^2
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