Simplify 7square root99

To simplify 7√99, you can break down the number under the square root sign into its prime factors.

The prime factorization of 99 is: 3 * 3 * 11.

Now, let's simplify the square root part. We can take out pairs of the same number, like 3 * 3, from under the square root sign.

7√99 = 7 * √(3 * 3 * 11)
= 7 * √(3 * 3) * √11
= 7 * 3 * √11
= 21√11

So, 7√99 simplifies to 21√11.