rozwiąż równanie 2x-1/x+2 = 5/3
2x-1 5
------ = --
x+2 3
5(x+2)=3(2x-1)
5x+10=6x-3
-x=-13
x=13
2x-1/x+2=5/3 /*3x
6x^2-3+6x=5x
6x^2+x-3=0
delta=1+24=25
pierw z delta=5
x1=-1-5/12=-6/12=-1/2
x2=-1+5/12=4/12=1/3
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2x-1 5
------ = --
x+2 3
5(x+2)=3(2x-1)
5x+10=6x-3
-x=-13
x=13
2x-1/x+2=5/3 /*3x
6x^2-3+6x=5x
6x^2+x-3=0
delta=1+24=25
pierw z delta=5
x1=-1-5/12=-6/12=-1/2
x2=-1+5/12=4/12=1/3