How do you simplify 5 sqrt40? Algebra Radicals and Geometry Connections Simplification of Radical Expressions 1 Answer Marie Mar 6, 2017 10sqrt(10) Explanation: Starting with sqrt(40) sqrt(4*10) sqrt(2^2*10) 2sqrt(10) Now, to include the 5 you have to multiply 2sqrt(10) by 5 which equals 10sqrt(10) Answer link Related questions How do you simplify radical expressions? How do you simplify radical expressions with fractions? How do you simplify radical expressions with variables? What are radical expressions? How do you simplify root{3}{-125}? How do you write ""^4sqrt(zw) as a rational exponent? How do you simplify ""^5sqrt(96) How do you write ""^9sqrt(y^3) as a rational exponent? How do you simplify sqrt(75a^12b^3c^5)? How do you simplify sqrt(50)-sqrt(2)? See all questions in Simplification of Radical Expressions Impact of this question 3735 views around the world You can reuse this answer Creative Commons License