Answer:
![\Huge \boxed{8x}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/75ghfv73oiy6rx8pw2584cjor0t2xs27vx.png)
Explanation:
To simplify the expression, first you have to isolate it on one side of the equation. Remember to solve this problem, use the distributive property of
.
First, multiply numbers from left to right.
![\displaystyle 2*4x=\boxed{8x}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/iameoad1v9wfab12krk8ksz49hcsuear5s.png)
Therefore, the correct answer is 8x.