How do you multiply sqrt2 *sqrt8? Algebra Radicals and Geometry Connections Multiplication and Division of Radicals 1 Answer George C. May 10, 2015 sqrt(2)sqrt(8) = sqrt(2*8) = sqrt(16) = 4 Based on sqrt(a)sqrt(b) = sqrt(ab). Answer link Related questions How do you simplify \frac{2}{\sqrt{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)? How do you multiply (sqrt(a) +sqrt(b))(sqrt(a)-sqrt(b))? How do you rationalize the denominator for \frac{2x}{\sqrt{5}x}? Do you always have to rationalize the denominator? How do you simplify sqrt(5)sqrt(15)? How do you simplify (7sqrt(13) + 2sqrt(6))(2sqrt(3)+3sqrt(6))? See all questions in Multiplication and Division of Radicals Impact of this question 1251 views around the world You can reuse this answer Creative Commons License