Упростите выражение 1) (4x-3) (8x+6) 2) (6x+4) (2-3x) 3) 2y (y^2-1) (2+y) 4) x^2 (x-3) (2+x^2)

1) (4x-3) (8x+6)=32x^2+24x-24x-18=32x^2-182) (6x+4) (2-3x)=12x-18x^2+8-12x=-18x^2+83) 2y (y^2-1) (2+y)=2y (2y^2+y^3-2-y)=4y^3+2y^4-4y-2y^24) x^2 (x-3) (2+x^2)=x^2 (2x+x^3-6-3x^2)=2x^3+x^6-6x^2-3x^4