Odpowiedzi

2009-09-27T13:51:21+02:00
1. 4-7,6x2
a=-7,6
b=0
c=4

2. -2(x+2)2+2=-2(x²+4x+4)+2=-2x²-8x-6
a=-2
b=-8
c=-6
3. 3(x-8)2+5(x+1)-4 =3(x²-16x+64)+5x+5-4=3x²-48x+192+5x+1=
=3x²-43x+193
a=-3
b=-43
c=193
4. (x+1)³-x(x-4)²+6(x-2)-4 =x³+3x²+3x+1-x(x²-4x+16)+6x-12-4=
=x³+3x²+3x+1-x³+4x²-16x+6x-16=7x²-7x-15
a=7
b=-7
c=-15