August 2018 1 19 Report
1. Zapisz w jak najprostszej postaci.
a) 2x(x-5)-3(x²-2x)+(x-2)x
b) a(a+b+c)-b(a-b+c)-c(a-b-c)
c) x(x²+2x+1)-(-4x³+8x²-6):2
d) 12b*b-1/4+14*b²-2b/21- b-b²/3

2. Obicz wartości liczbowe wyrażeń.
a) 3(x²-2x+3)-2(x²-5x-1) dla x=2
b) a(2ab+b)-b(a-2ab+a²) dla a=0,1 i b=10

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