September 2018 2 25 Report

Rozwiąż równanie:

a) 9x^2-6x+1=0

b) -2x^2+x+1=0

c) 5x^2-2x=-3

d) 9x^2=3x+2

e) 3x^2-5x=x^2+2x-3

f) -5x^2+5x-4=-x^2-7x+5


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