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

1810 Views

See similar Maths IB tutors

Related Maths IB answers

All answers ▸

Given f(x)=(x^3-7)*(x+4)^5, find the term x^3 of f(x).


Given the function f(x)=λx^3 + 9, for λ other than zero, find the inflection point of the graph in terms of λ. How does the slope of the line tangent to the inflection point changes as λ varies from 0 to 1?


How would you find the Max and Min points on a graph?


Prove by induction that 7^(8n+3) + 2 is divisible by 5, where n is a natural number.


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