Question

Solve for X using quadratic equations:

A) 9x^2 - 3(a+b)x + ab= 0
B) 9a^2x^2 + 6abc + b^2 = 0. [ a ≠ 0]

Answer 1

Answer:

9x2 - 3ax - 3bx + ab = 0

3x (3x - a) - b(3x - a) = 0

(3x-a)(3x-b)=0

so , 3x-a=0

x=

or , 3x-b=0