9(x-3)(x-3)=4(x-2)(x-2)用因式分解求

问题描述:

9(x-3)(x-3)=4(x-2)(x-2)用因式分解求

9x^-54x+81=4x^-16x+16
5x^-38x+65=0
(x-5)(5x-13)=0
x1=5,x2=13/5