How do you simplify #5sqrt2 * 8sqrt2#? Algebra Radicals and Geometry Connections Multiplication and Division of Radicals 1 Answer George C. Jun 7, 2015 #5sqrt(2)*8sqrt(2) = 5*8*sqrt(2)*sqrt(2) = 5*8*2 = 80# 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 1208 views around the world You can reuse this answer Creative Commons License