gaokao 2015 Q9

gaokao · China · beijing-science Binomial Theorem (positive integer n) Find a Specific Coefficient in a Single Binomial Expansion

9. In the expansion of $( 2 + x ) ^ { 5 }$, the coefficient of $x ^ { 3 }$ is $\_\_\_\_$. (Answer with numerals)

9. In the expansion of $( 2 + x ) ^ { 5 }$, the coefficient of $x ^ { 3 }$ is $\_\_\_\_$. (Answer with numerals)