2/(x-3)=x+5/(x^2-9)
2х^2-18=х^2+5x-3x-15
2x^2-x^2+5x-3x-18+15=0
x^2+2x-3=0
D=4+12=16
x1=-2+4/2=1
x2=-2-4/2=-3
2/(x-3)=x+5/(x^2-9)
2х^2-18=х^2+5x-3x-15
2x^2-x^2+5x-3x-18+15=0
x^2+2x-3=0
D=4+12=16
x1=-2+4/2=1
x2=-2-4/2=-3