How do you multiply #-5sqrt(3a^2) * -2sqrt(5a)#? Algebra Radicals and Geometry Connections Multiplication and Division of Radicals 1 Answer Jumbotron Jun 23, 2017 #150a^3# Explanation: #-5sqrt(3a^2) * -2sqrt(5a)# Solution #(-5 xx -2) cdot (sqrt3a^2 xx sqrt5a)# #10 cdot sqrt(3a^2 xx 5a)^2# #10 cdot sqrt(3a^2 xx 5a)^2# #10 cdot(3a^2 xx 5a)# #10 cdot(15a^(2+1))# #10 cdot(15a^3)# #150a^3# 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 1055 views around the world You can reuse this answer Creative Commons License