x=0: 7*0/3*0-2=0/0-2=0/(-2)=0. x= -1: 7*(-1) / 3*(-1)-2=(-7)/-3-2=(-7)/(-5)=1,4. x=2: 7*2 / 3*2-2=14/6-2=14/4=7/2=3,5.
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x=0: 7*0/3*0-2=0/0-2=0/(-2)=0. x= -1: 7*(-1) / 3*(-1)-2=(-7)/-3-2=(-7)/(-5)=1,4. x=2: 7*2 / 3*2-2=14/6-2=14/4=7/2=3,5.