Question

If a + b = 15 and a2 - b2 = 60, what is the value of a - b?
A) 45
(b) 75
(c) 8
(d) 4.​

Answer 1

Answer:

4

Step-by-step explanation:

to find (a-b)

Sol = a²-b²=(a+b) (a-b)

60=(15) (a-b)

60/15=a-b

4=a-b