Question

use the distributive property to create an equivalent expression to 40+4x

Answer 1

I think 2(2x+20) would work.
there are other ones like: 4(x+10)

Answer 2

find the greatest common factor, GCF, which is 4.

4(40/4 + 4x/4)   factor out the GCF 

4(10 + x)      simplify and this is your answer.

hope this helps, God bless!