How do you use rational exponents to simplify #4sqrt(x^16)#? Algebra Exponents and Exponential Functions Fractional Exponents 1 Answer Kevin B. Apr 11, 2015 You can rewrite #4sqrt(x^16)# as #4(x)^(16 xx 1/2)# Multiply the powers together: #4x^8# Answer link Related questions What are Fractional Exponents? How do you convert radical expressions to fractional exponents? How do you simplify fractional exponents? How do you evaluate fractional exponents? Why are fractional exponents roots? How do you simplify #(x^{\frac{1}{2}} y^{-\frac{2}{3}})(x^2 y^{\frac{1}{3}})#? How do you simplify #((3x)/(y^(1/3)))^3# without any fractions in the answer? How do you simplify #\frac{a^{-2}b^{-3}}{c^{-1}}# without any negative or fractional exponents... How do you evaluate #(16^{\frac{1}{2}})^3#? What is #5^0#? See all questions in Fractional Exponents Impact of this question 1784 views around the world You can reuse this answer Creative Commons License