August 2018 1 14 Report
Usuń nawiasy i zredukuj wyrazy podobne. Oblicz wartości wyrażeń dla podanych zmiennych.
a)-(2x-x²)-[2-3x-(2x²-3x+4)] dla x=-0.5
b)3-[-(2x-3x²)+(1-3x+x²)]+4x² dla x=-0,3
c)1-a-[1-(a-1)-2a-(1-3a)]-a-1 dla a=-0,7
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