| No | Description | Difficulty | Syllabus | Level | |
|---|---|---|---|---|---|
| 1 | cubic of form (x+b)(x+d)(x+f)=0; MC | Easy | A-level | C1 | Related material |
| 2 | solve (ax+b)(cx+d)(ex+f)=0; 3NI | Hard | A-level | C1 | Related material |
| 3 | (ax+b)(cx+d)(ex+f) cubic frac roots; MC | Hard | A-level | C1 | Related material |
| 4 | cubic equation: find smallest root; NI+C | Hard | A-level | C1 | Related material |