Solving cubic inequalities | Unit 1 and 2 VCE Maths Methods

This video is aimed at students studying Unit 1 and 2 of VCE Mathematical Methods. This video is part of a topic on Polynomial functions

In this video we look at the process for solving a cubic inequality.
Hint: It’s exactly the same process used for solving ALL non-linear inequalities… you must draw a graph!

My class uses the Cambridge Senior Mathematics textbook for Units 1 and 2 Mathematical Methods for the Australian Curriculum / VCE and the TI Nspire CAS CX II handheld.

[mrs-junose]

O MY GOD, BOY DID U SAVE MY LIFE ILY 😭💋

[moistymistry]

Question why did (x^3 + x^2 - 2x) suddenly become (x^3 + x - 2x) where did the ^2 go??