Question 2 Hint Menu
Copy/paste the following tutorials:
- How do we factorise and solve cubics and higher power polynomials?
Question analysis
This question wants us to factorise and solve an equation, so we need to put the expression into brackets first. Now, the first thing we should always check is highest common factor (HCF doesn't have to be a number!). Once we take out any highest common factor, the question should be 10 times easier.
In part (b), we can solve the equation by using the null factor law once we have done part (a).