The answer should be 21 hope it helps
Answer:
Following are the complete solution in the attached file.
Step-by-step explanation:
Answer:
71.8
Hope this helps!
This is x^3+x^2+1=-x in math terms, where x is the number. So x^3+x^2+x+1=0. We can write this: x^2(x+1)+(x+1)=(x^2+1)(x+1)=0. The only real solution is x+1=0, so x=-1.
Hopefully that makes sense