Math, asked by bhisikardeva, 9 months ago

If (a+b) = 8 and ab = 15, find the value of (a^2 + b^2)​

Answers

Answered by itsbiswaa
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 Anonymous
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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