How do you simplify sqrt(2ab^2)*sqrt(10a^5b)?

1 Answer
Feb 27, 2017

=2a^3bsqrt(5b)

Explanation:

If you are multiplying two square roots, you can combine them:

sqrta xx sqrtb = sqrt(ab)

sqrt(2ab^2) xx sqrt(10a^5b) = sqrt(20a^6b^3)

Write the expression as products of factors, using squares where possible:

sqrt(20a^6b^3) = sqrt(color(red)(4)xx 5 xxcolor(red)(a^6) xx color(red)(b^2) xx b)

Find the square roots where possible:

=color(red)(2a^3b)sqrt(5b)