Question

lim x2-3x+1/x2+2
x->-1

Answer 1

Lim x²-3x+1/x²+2
x⇒-1
remplaza
1+3+1/1+2

=5/3 

Lim x²-3x+1/x²+2  =5/3
x⇒-1

Answer 2

Solo hay que sustituir el valor de "x"

$\frac{ x^{2} -3x+1}{ x^{2} +2} \\ \\ \frac{( -1)^{2}-3(-1)+1 }{ (-1)^{2}+2 } \\ \\ \frac{1+3+1}{1+2} \\ \\ \frac{5}{3}$