Can anyone answer this for me?
Pre-algebra 8th grade

Answer:
[tex]4\left(5-4x^3\right)[/tex]
Step-by-step explanation:
[tex]20-4x^3\\4\cdot \:5-4x^3\\4\left(5-4x^3\right)[/tex]
4 would have been factored out of the equation if we factored further.
Hope this helps!