If (a+b) = 8 and ab = 15, find the value of (a^2 + b^2)
Answers
Answered by
3
Answer:
given,
a +b=8
after squaring both sided we get,
(a +b) ^2=8 ^2
a ^2 +b ^2 +2ab= 64
a ^2 +b ^2 +2× 15 = 64 (ab= 15)
a ^2 +b ^2 + 30= 64
a ^2 +b ^2= 64- 30
a ^2 +b ^2= 34.
Step-by-step explanation:
Answered by
1
Answer:
34
Step-by-step explanation:
as given a+b=8
take square both side
(a+b)^2=64
a^2+b^2+2ab=64
a^2+b^2+2×15=64
a^2+b^2=34
I hope this will help you
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