Odpowiedzi

2010-03-16T17:47:14+01:00
(2(3-4x+x³)-(2-x)(x²+6x-3))(2x-3)=
=
(2*(3-4x+x³)-(2x²+12x-6-x³-6x²+3x))(2x-3)
=
(2*(3-4x+x³-2x²-12x+12+x³+12x-3x))(2x-3)
=
(6-8x+2x³-4x²-24x+24-2x³+24x-6x)(2x-3)
=(30-14x-4x²)(2x-3)=
=60x-28x²-8x³-90+42x+12x² = 102x-16x²-8x³-90