Question

Find x : 12abx^2 - (9a^2 - 8b^2 )x - 6ab = 0

Answer 1

12abx^2 - (9a^2 - 8b^2 )x - 6ab = 0
=> 12abx^2 - 9a^2 x+ 8b^2x - 6ab = 0
=> 3ax(4bx - 3a)+2b(4bx-3a)=0
=> (4bx-3a)(3ax+2b)=0
=> 4bx-3a=0 or 3ax+2b=0
=> x = 3a/4b or - 2b/3a