Quadratic equations Quiz: answer key
Every answer, with a link to its step-by-step solution
| # | Answer | Level | Solution |
|---|---|---|---|
| 1 | A x = 5 or x = −5 | Easy | Solved step by step |
| 2 | x = 2 or x = −2 | Easy | Solved step by step |
| 3 | C x = 5 or x = −1 | Easy | Solved step by step |
| 4 | x = 2 or x = 5 | Easy | Solved step by step |
| 5 | C x = 1 or x = −7 | Medium | Solved step by step |
| 6 | x = 3 or x = −5 | Medium | Solved step by step |
| 7 | C x = 2 or x = −2 | Medium | Solved step by step |
| 8 | x ≈ 0.24 or x ≈ −4.24 | Medium | Solved step by step |
| 9 | −1 no real solution | Medium | Solved step by step |
| 10 | x ≈ 3.24 or x ≈ −1.24 | 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%.