Mathorio
Answer key
Dividing Radicals
Show your work for each problem.
- 1.Simplify
- a)
- b)
- c)
- d)
Answer:
- 2.Simplify
Answer: 2
- 3.Simplify step by step.
Answer: 3
- Apply the quotient rule. What is ? sqrt(9)
- What is ? 3
- 4.Simplify
- a)
- b)
- c)
- d)
Answer:
- 5.Simplify
Answer: 3
- 6.Simplify step by step.
Answer: 4
- Apply the quotient rule. What is ? 16
- What is ? 4
- 7.Simplify
- a)
- b)
- c)
- d)
Answer:
. Note: and are the same!
- 8.Simplify
Answer: 7
- 9.Simplify step by step.
Answer: 5
- What is ? 25
- What is ? 5
- 10.Rationalize the denominator:
- a)
- b)
- c)
- d)
Answer:
- 11.Rationalize:
Answer: 2sqrt(3)
- Multiply numerator and denominator by . What is the new numerator? 6sqrt(3)
- What is the new denominator? ? 3
- Simplify 2sqrt(3)
- 12.Simplify
Answer: 2sqrt(3)
- 13.Simplify
- a)
- b)
- c)
- d)
Answer:
. Note: is not fully simplified!
- 14.Rationalize:
Answer: 2sqrt(5)
- Multiply by . What is the new numerator? 10sqrt(5)
- What is the new denominator? 5
- Simplify 2sqrt(5)
- 15.Simplify
Answer: 3sqrt(3)
- 16.Rationalize the denominator:
Answer: -3 + 3sqrt(2)
- What is the conjugate of ? 1 - sqrt(2)
- What is ? -1
- The answer is . Simplify. -3 + 3sqrt(2)
- 17.Rationalize:
- a)
- b)
- c)
- d)
Answer:
- 18.Simplify completely:
Answer: 8
- Apply the quotient rule. What is ? 64
- What is ? 8