Completing the square Quiz: answer key
Every answer, with a link to its step-by-step solution
| # | Answer | Level | Solution |
|---|---|---|---|
| 1 | D x = 1 or x = −7 | Easy | Solved step by step |
| 2 | x = 1 or x = −5 | Easy | Solved step by step |
| 3 | D x = 1 or x = −9 | Easy | Solved step by step |
| 4 | x = 2 or x = −4 | Easy | Solved step by step |
| 5 | A x = −3 or x = −7 | Medium | Solved step by step |
| 6 | x = 4 + √3 or x = 4 − √3 | Medium | Solved step by step |
| 7 | x = −3 + √7 or x = −3 − √7 | Medium | Solved step by step |
| 8 | x = 8 or x = 2 | Medium | Solved step by step |
| 9 | x = −1 + √2 or x = −1 − √2 | Harder | Solved step by step |
| 10 | x = −2 or x = −10 | 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%.