Sum and difference of cubes Quiz: answer key
Every answer, with a link to its step-by-step solution
| # | Answer | Level | Solution |
|---|---|---|---|
| 1 | (x − 2)(x2 + 2x + 4) | Easy | Solved step by step |
| 2 | (x − 1)(x2 + x + 1) | Easy | Solved step by step |
| 3 | (x − 5)(x2 + 5x + 25) | Easy | Solved step by step |
| 4 | (x − 6)(x2 + 6x + 36) | Easy | Solved step by step |
| 5 | (2x − 1)(4x2 + 2x + 1) | Medium | Solved step by step |
| 6 | (4y − 3)(16y2 + 12y + 9) | Medium | Solved step by step |
| 7 | (5x − 1)(25x2 + 5x + 1) | Medium | Solved step by step |
| 8 | 3(x + 2)(x2 − 2x + 4) | Medium | Solved step by step |
| 9 | 2(x + 5)(x2 − 5x + 25) | Harder | Solved step by step |
| 10 | 2(2x − 3)(4x2 + 6x + 9) | Harder | Solved step by step |
Grade
Count your right answers and divide by the number of questions: A 90% or more, B 80%, C 70%, D 60%, F below 60%.