What is the square root of 5 times the square root of 15? Algebra Radicals and Geometry Connections Multiplication and Division of Radicals 1 Answer Geoffrey T May 28, 2018 5sqrt(3)5√3 Explanation: sqrt(5) * sqrt(15)√5⋅√15 is the same as sqrt(5) * sqrt(5) * sqrt(3)√5⋅√5⋅√3 Simplify. 5sqrt(3)5√3 Answer link Related questions How do you simplify \frac{2}{\sqrt{3}}2√3? How do you multiply and divide radicals? How do you rationalize the denominator? What is Multiplication and Division of Radicals? How do you simplify 7/(""^3sqrt(5)73√5? How do you multiply (sqrt(a) +sqrt(b))(sqrt(a)-sqrt(b))(√a+√b)(√a−√b)? How do you rationalize the denominator for \frac{2x}{\sqrt{5}x}2x√5x? Do you always have to rationalize the denominator? How do you simplify sqrt(5)sqrt(15)√5√15? How do you simplify (7sqrt(13) + 2sqrt(6))(2sqrt(3)+3sqrt(6))(7√13+2√6)(2√3+3√6)? See all questions in Multiplication and Division of Radicals Impact of this question 15603 views around the world You can reuse this answer Creative Commons License