(2x+3)^2=4(2x+3)
(2x+3)^2-4(2x+3)=0
(2x+3)(2x+3-4)=0
x=-3/2 x=1/2
5(x2-x)=3(x2+x)
5x^2-5x-3x^2-3x=0
2x^2-8x=0
x(x-4)=0
x=0 x=4
(2x+3)^2=4(2x+3)
(2x+3)^2-4(2x+3)=0
(2x+3)(2x+3-4)=0
x=-3/2 x=1/2
5(x2-x)=3(x2+x)
5x^2-5x-3x^2-3x=0
2x^2-8x=0
x(x-4)=0
x=0 x=4