Question

Solve for x : 12abx2-(9a2-8b2)x-6a=0

Answer 1

Answer:

12abx^2 - (9a^2 - 8b^2)x - 6ab

= 12abx^2 - 9a^2x - 8b^2x - 6ab

= 3ax (4bx - 3a) + 2b (4bx - 3a)                [I opened the middle bracket and grouped it]

= (3ax + 2b) (4bx - 3a)

therefore,

-2b/3a , 3a/4b are the values for 'x'

Also, note that the initial equation is in the from

2x - (a-b)x - x (ab)

here x = 6ab

a=9a

b=8b