Simplify 7√99 .
We can start by breaking down √99 into its prime factors:
√99 = √(9 * 11)
Next, we can simplify the square root of 9:
√(9 * 11) = √9 * √11 = 3√11
Finally, we can multiply 7 by 3√11:
7 * 3√11 = 21√11
Therefore, the simplified form of 7√99 is 21√11.