October 2018 2 19 Report

Oblicz:

a)xkwadrat+2x+1=0

b)xkwadrat-4x=0

c)2xkwadrat+x+4=0

d)xkwadrat-5x+6=0

e)xkwadrat-9=0

f)2xkwadrat+x+2=0

Proszę o pomoc!


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