Question

If a-b=7 and ab=18. find a+b.

Answer 1

Answer:

Here is your answer..

Step-by-step explanation:

( a-b)2 = a2+b2-2 ab

49 = a2+b2 - 36

a2 + b2 = 85

a+b = root 85.

Answer 2

Step-by-step explanation:

(a-b)2=a2+b2-2ab

49=a2+b2-36

a2+b2=85

a+b=root85