x - aa2 - b2 = x - bb2 - a2 হলে x = কত?

x - aa2 - b2 = x - bb2 - a2 হলে x = কত?

A a

B ab

C a + b

D 12(a + b)

Solution

Correct Answer: Option D

(x-a)/a2-b2= (x-b)/b2-a2 or x-a= -(x-b) or,2x= a+b so ,x= (a+b)/2