(5x+2)(x-2)-(x-1)(x+1)=4x-3

(х-2)(5х+2)-(х-1)(х+1)=4х-3
5х^2+2x-10x-4-x^2+1=4x-3
4х²-8х-3=4х-3
4х²-12х=0
4х(х-3)=0
х(х-3)=0
х-3=0   х=0