Question

help with radicals?

Answer 1

\[3\sqrt{5}\times \sqrt{5}\]

Answer 2

\[3\sqrt{5}\times \sqrt{5}\]

We can combine the numbers under the radical
\[3\sqrt{5\times5}\]
Then simplify them
\[3\sqrt{25}\]
Now, what is the square root of 25?
3(5)

So the answer is finally: 15 :)

Answer 3

thank you both!