Question

If a+b =5,a square+b square=13,find ab

Answer 1

Answer:

Step-by-step explanation:

a+ b = 5

So ( a+ b )^ 2 = 25

Or , a^2 + b^ 2 + 2ab = 25

Or, 13 + 2ab = 25

Or, 2ab =12

Or, ab = 6