Question Part (a)
Marking step 1
Description of marks: Factorise a cubic expression
[1 mark for taking \(x\) out as a common factor]
[1 mark for factorising the quadratic factor]
Option type: Multiple (checkboxes)
Marking prompt : Which of the following calculations did you perform?
Options:
- I took \(x\) out as a common factor.
- I used the cross method to factorise the quadratic factor.
Worked solution: