Pomocy!!!To na jutro!!!

1)0.3x-0.4x+0.5x-0.6x+0.7x=
2)696y-969y+69y-96y=
3)1/2a do kwadratu + 1/3a do kwadratu + 1/6a do kwadratu - 2a do kwadratu =
4)2a+3b-c-4a-3b+2c=
5)3x-2y+3.5x-y+2+0.5y=
6)xy+3x-y+1-2xy-2x+y+1=
7)x do kwadratu +2xy-3y do kwadratu-2x do kwadratu -y do kwadratu -x do kwadratu +2xy=
8)1/6t do kwadratu + 1/3k do kwadratu t+1/3tk do kwadratu-k do kwadratu t+ 1/2 t do kwadratu - 1/6 tk do kwadratu
9)u do kwadratu v do kwadratu+1/4 uv-1/7u do kwadratu v do kwadratu - uv-1/2uv + u do kwadratu v do kwadratu =


a)) 2xy+.........=3xy+x
b))3mn+.........=3
c))2x do kwadratu -2x+......=2x
d))a do kwadratu - b do kwadratu +.........=b do kwadratu - a do kwadratu
e))-pq-q+.........=-2pq
f))x do kwadratu - 2y do kwadratu +........=2xy

1

Odpowiedzi

2010-02-08T17:24:30+01:00
1. 0,5x
2. -300y
3.-a do kwadratu
4.-2a -c
5.6,5x - 2,5y +2
6.-xy + x + 2
7.-2x do kwadratu + 4xy -4y