Answers>Maths>IB>Article

Find the first and second order derivative of the function, F(x)= 3x^3 - 7 + 5x^2, and then identify the maximum or minimum points.

F(x)= 3x3 - 7 + 5x2
i) F'(x)= 33x2 + 25x
F'(x)= 9x2 + 10x
ii) F''(x)= 2*9x + 10
F''(x)= 18x + 10
iii) for maximum or minimum points (stationary points) F'(x)=0 9x2+ 10x = 0 x * (9x + 10) = 0 x = 0 or 9x + 10 = 0x = 0 or x = -10/9

ID
Answered by Iosif D. Maths tutor

1927 Views

See similar Maths IB tutors

Related Maths IB answers

All answers ▸

Given h(x) = 9^x + 9 and g(x) = 10*3^x, find {x | h(x) < g(x)}.


In the arthmetic sequence, the first term is 3 and the fourth term is 12. Find the common difference (d) and the sum of the first 10 terms.


Talk about the relation between differentiability and continuity on a real function and its derivative.


f(x)=sin(2x) for 0<x<pi, find the values of x for which f is a decreasing function


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning