Given that a square+ b square=34 and ab=15. Find the value of (a+b)to the square.
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(a+b)²=a²+b²+2ab
(a+b)²=34+2*15
(a+b)²=64
(a+b)=8
(a+b)²=34+2*15
(a+b)²=64
(a+b)=8
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