Question

if a+b=8 and ab=15 find a²+b²​

Answer 1

34

if a+b=8 and ab=15 find a²+b²

(a+b)²=a²+b²+2ab

put the value of a+b and ab

(8)²=a²+b²+2(15)

64=a²+b²+30

a²+b²=64-30

a²+b²=34

Answer 2

Refer The Attachment ⬆️

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