Odpowiedzi

2009-11-18T17:37:29+01:00
X kwadrat + 5x - 2x - 10 + 2x kwadrat - x +10x - 5 = 3x kwadrat +12x - 10
1 1 1
2009-11-18T17:39:30+01:00
(x-2)(x+5)(2x-1)→x²-10(2x-1)→2x³+10
2009-11-18T17:39:57+01:00
(x-2)(x+5)(2x-1)= (x²+5x-2x+10)(2x-1)=
=2x³-x²+10x²-5x-4x²-2x+20x-10=2x³+5x²+18x-10

:)