x^2-1 ÷ x+1
(-5)^2-1 ÷ -5 + 1
25-1 ÷ - 4
24 ÷ -4
-6
ans is -6 !!!!
[tex]\tt \dfrac{(-5^2)-1}{(-5+1)}=\dfrac{24}{-4}=-6[/tex]
