October 2018 1 6 Report

1. Wykonaj mnożenie i zredukuj wyrazy podobne:

a) (c-1)(b+2)+2bc

b) (5-5a)(5+5a)+(5-5a)²

c) (2x+2)²

d) (3-x)²

2. Rozwiąż równanie

a) (2x+4)²=2x(3+x)+2x² +6

b) 1/2x - 3/4 (-3x-1) = 1 - x+1/4


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