square root of 3a(square root of a -7square root of 3)

Thank you for the opportunity to help you with your question!

The first thing I would do in this problem would be distribute the sqrt (3a) to what is in the brackets.

The equation then becomes: (sqrt (3a) * (sqrt (a)) +(sqrt (3a) -7 sqrt(3))

Then we can start to simplify, we can pull the "a" out of the first part because sqrt(a) * sqrt(a) = a

using the same logic, we can pull out the 3 in the second part.

Now it reads: a sqrt(3) -7*3 sqrt(a)

all we can do to simply if further is multiple -7 *3 ....so our final answer is:

a sqrt(3) -21 sqrt(a)

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