Сократить 10x²-(2х-3)(5х-1)

10x^2-(10x^2-2x-15x+3)=10x^2-10x^2+17x-3=17x-3

10x²-(2х-3)(5х-1)= 10х²-(10х²-2х-15х+3)= 10х²-10х²+2х+15х-3== 17х-3