Question

If (a - b) = 2, ab = 15, find (a - b).​

Answer 1

Answer:

you have already given the value of a-b=2

Step-by-step explanation:

hope it help you

Answer 2

Answer:

There are some mistakes in your question[question will be (a+b) instead of (a-b)].So I am taking (a+b) instead of (a-b).

(a+b)2=(a-b)2+4ab

(a+b)2=(2)2+(4*15)

(a+b)2=4+60

(a+b)2=64

a+b=√64

a+b=8