August 2018 2 11 Report
Zapisz w jak najprostszej postaci:
2(7x+5)-6(x-2)

5(3-2x)-(4x+6)*3

12x+16 10x+15
--------- - -----------
4 5


9-6x 21-14x
--------- - -----------
3 7




Oblicz wartości liczbowe wyrażeń:


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

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