4x^2=144,x^2=36,x=6或-6;液燃迹段粗3x(x-1)=2(x-1),(x-1)(3x-2)=0,x=1或2/3;(2x-1)^2=(3-x)^2,(2x-1+3-x)[2x-1-(3-x)]=0,x=-2或4/3;闹并(2x-1)^2=(3-x)^2,3x^2+2x-8=0,3(x+2)(x-4/3)=0,x=-2或4/3
(4x)^2=144,(4x)^2=12^2,4x=12,x=3
<4x3>的平方=144