How do you simplify the expression 5 sqrt(x^2)?

1 Answer
Mar 7, 2017

5sqrt(x^2) = 5x See a solution process below using rules of radicals and exponents:

Explanation:

First, use this rule of radicals to rewrite this expression:

root(color(red)(n))(x) = x^(1/color(red)(n))

5sqrt(x^2) = 5root(color(red)(2))(x^2) = 5(x^2)^(1/color(red)(2))

Next, use this rule of exponents to further simplify:

5(x^color(red)(2))^color(blue)(1/2) = 5x^(color(red)(2) xx color(blue)(1/2)) = 5x^1

Now, we can complete the simplification using this rule of exponents:

a^color(red)(1) = a

5x^color(red)(1) = 5x