How do you simplify #3sqrt x * 3 sqrt x#?

1 Answer
Jul 21, 2018

Answer:

#9x#

Explanation:

Since we are multiplying the same thing, we can rewrite this as

#(3sqrtx)^2#, which is equal to #3^2*(sqrtx)^2#

This simplifies nicely to

#9x#

Another way we can go about this is rewrite the original expression as

#3*3*sqrtx*sqrtx#, which simplifies to

#9x#

Hope this helps!