Answer:
-1
Step-by-step explanation:
[tex]f(x)=1-x^{2} +x^{3}\\\\[/tex]
Enter the x value into the equation:
[tex]f(-1)=1-(-1)^{2}+(-1)^{3} \\\f(-1) = 1+1-1\\ f(-1)=-1[/tex]
