Question

If a+b=8 and ab=15, find the value of (a²+b²)​

Answer 1

Answer:

(a²+b²)

(a+b)²-2ab

8²-2×15

64-30

34

Step-by-step explanation:

Hope it helps...

Answer 2

Step-by-step explanation:

(a+b)^2=8^2 squaring on both side

a^2+b^2+2ab=64

a^2+b^2+2×15=64

a^2+b^2=64-30

a^2+b^2=34