1)((4х²-3х)*(х+2))'=(4х²-3х)'*(х+2)+(4х²-3х)*(х+2)'=(8x-3)*(x+2)+4х²-3x=
8x²+16x-3x-6+4х²-3х=12x²+10x-6
2) ((3x²-2x)*(2x+1))'=(6x-2)*(2x+1)+2*(3x²-2x)=12x²+6x-4x-2+6x²-4x=18x²-2x-2
3)((3x²-4x)/(x+1))'=(((3x²-4x)'*(x+1)-(3x²-4x)*(x+1)')(x+1)²=
((6x-4)*(x+1)-(3x²-4x)*(1)/)(x+1)²=(6x²+6x-4x-4-3x²+4x)/(x+1)²=(3x²+6x-4)(x+1)²
4) ((2x³-2x²)/(x-2))'=((6x²-4x)*(x-2)-(2x³-2x²))/(x-2)²=
(6x³-12x²-4x²+8x-2x³+2x²)/(x-2)²=(4x³-14x²+8x)/(x-2)²
