A)x^2-3x+1/x^2+2x-3
x=-3
b)x^2+2x-2/x-1
si x=-2
c)4x-8/-x+2
si x=2
/ signo de fraccion
x=-3
b)x^2+2x-2/x-1
si x=-2
c)4x-8/-x+2
si x=2
/ signo de fraccion
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A) (-3)^2-3(-3)+1 / (-3)^2+2(-3)-3=19 / 0 = N.D.
B) (-2)^2+2(-2)-2 / (-2)-1 = -2/-3 =2/3
C) 4(2)-8/-(2)+2= 0/0 = 0