Differentiate.
V(x) = (3 x^3 + 3)(x^4 - 3 x)
Damon did this for you yesterday
http://www.jiskha.com/display.cgi?id=1288682588
Please check your previous posts before posting the same question again.
V(x) = (3 x^3 + 3)(x^4 - 3 x)
http://www.jiskha.com/display.cgi?id=1288682588
Please check your previous posts before posting the same question again.