Surds Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. Which of these is a surd?
- A. √25
- B. √7
- C. √100
- D. √9
2. Simplify √75.
- A. 5√3
- B. 3√5
- C. 15√5
- D. 5√15
3. What is 7√5 − 2√5?
- A. 5√5
- B. 5
- C. 9√10
- D. 5√10
4. Rationalise 1/√3.
- A. √3
- B. √3/3
- C. 3/√3
- D. 1/3
5. Simplify (√6)² − √24.
- A. 6 − 2√6
- B. 0
- C. 6 + 2√6
- D. 6