oblicz jednomiany (chyba bo niewiem dokładnie bo to było na kartkówce)
zad1
x+5+x-3=
2x+8y+x-6y=
-2a+b-a-2b+3a=
6a-4b-8a+2b=
3,6x-0,8y+0,6x-0,2y=
zad2
3x-4y-x-8+2y dla x=-2,y=6
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zad.1
x+5+x-3=x+x+5-3=2x+2
2x+8y+x-6y=3x+2y
-2a+b-a-2b+3a=(-2a-a+3a)+(b-2b)=-b
6a-4b-8a+2b=-2a-2b
3,6x-0,8y+0,6x-0,2y=4,2x-1y
zad.2
3x-4y-x-8+2y dla x=-2 , y=6
3*(-2)-4*6-(-2)-8+2*6=-6-24+2-8+12=-24