1. simplify fully: 4√6+2√6-√6 a. 6√18 b. 5√18 c. 6√6 d. 5√6 2. between which two consecutive integers does √34 lie? a. 5 and 6 b. 4 and 5 c. 7 and 8 d. 6 and 7 3. what is √4n⁵ expressed in simplified form? a. 2n² b. 2n⁵ c. 2n²√n d. 2n⁴√n 4. evaluate √21-x when x=9. answer in simplified radical form. a. 3 b. 2√3 c. √3 d. 4