September 2018 2 20 Report

1. Zredaguj wyrazy podobne:

a) -3a+6b-4+2a+2b-3=

b) 5a-4b-2-9a-2b-5=

c) x+3y-7z-3x+2y-z+2x-4y+2z=

2. Doprować do najprostrzej postaci:

a) 2(a-3b)-3(a-b)-5(4a+3b)=

b) -3(2x-3y)+5(x+2y)-2(3y-x)=

c) 5(b-2a)+3(a-3b)-4(2a-4b)=

3.Wykonaj mnożenie i zredaguj wyrazy podobne:

a) (3x-2)(4x+5)=

b) (-2x-3)(6x-8)=

c) (2x-3)(x kwadrat -3x)-7=


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