# How do you evaluate the function #j(x)=x^3-7x# when x=3?

##### 1 Answer

May 1, 2018

#### Explanation:

#"to evaluate substitute x = 3 into "j(x)#

#rArrj(color(red)(3))=(color(red)(3))^3-(7xxcolor(red)(3))=27-21=6#