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V - pierwiastek
(x)=6-x^2
0=6-x^2
x^2=6
x=V6
(x)=6x+1
0=6x+1
-6x=1
x=1/(-6)
x=-1/6
(x)=2+3x
0=2+3x
-3x=2
x=2/(-3)
x=-2/3
(x)=10+2x
0=10+2x
-2x=10
x=10/(-2)
x=-5
Odp:A