Question

How do you simplify `7sqrt(2a^3)-sqrt(8a)`?

Answer 1

`sqrt(2a)(7a-2)`

Explanation:

Look for values that are squared within the square roots and then take them out of the square roots.

Write as:`" "7sqrt(2xxa^2xxa)-sqrt(2^2xx2a)`

`7asqrt(2a)-2sqrt(2a)`

Factor out the `sqrt(2a)` giving:

`sqrt(2a)(7a-2)`