November 2018 2 39 Report

1. zapisz wyrażenia, nie używając nawiasów. Zredaguj wyrazy podobne.

a) 2a + ( 3a-7) =
b) x - ( 2x- 3 )=
c)3x - ( y - 2x)=
d) -(3a + 6) - 4 =
e) -(2x- 1) - ( 3x + 1 )=
f) (4a - 7b) - (2a +3b) =
g) ( 2p-r ) + ( 2r - p) =
h) ( x+y) + ( x-z ) + ( z-y) =


2. Zapisz w jak najprostszej postaci/

a) ( x-2) - ( 2-x) =
b) ( a+b) + ( 2a -b) - (a- 2b) =
c) ( 3x - y +1) - (x+y) + ( y-x) =
d) -(2a do potegi 2 - 3 ab) - ( 2b - 3a do potęgi 2 ) +(- ab- b ) =


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