√99 simplify each radical expression

Question

jim_thompson5910 · Answer

$$\Large \sqrt{99}$$


$$\Large \sqrt{9*11}$$


$$\Large \sqrt{9}*\sqrt{11}$$


$$\Large 3\sqrt{11}$$


So $$\Large \sqrt{99} = 3\sqrt{11}$$

anonymous · Answer

√225

anonymous · Answer

√225

√25 * 9

5 * 3

15

anonymous · Answer

√128

anonymous · Answer

You're not going to learn this way.

anonymous · Answer

8√2

anonymous · Answer

I go to tutoring but the teacher won't help

anonymous · Answer

The first answer showed you how to approach this problem: try to express the number under the square root as multiplication of two numbers, at least one of which is a square. Then separate and simplify, using:

$$\sqrt{x*y} = \sqrt{x} * \sqrt{y}$$

anonymous · Answer

With $$\sqrt{128}$$ you should have asked yourself "what two numbers multiplied by each other give 128"?

anonymous · Answer

For even numbers, it's easy to just continually divide by 2. If you can not find another number off the top of your head. But Knowak is right with what he posted.