Answer:
Step-by-step explanation:
You can begin by breaking down √(160) into its prime factors.
160 = 2 * 2 * 2 * 2 * 2 * 5
√(160) = √(2 * 2 * 2 * 2 *2 * 5)
This can be broken down further by
2 * 2√2 * 5
For every 2 factors that are the same, take one outside the brackets
4 √10
I suppose the way you are supposed to write this is √16 * √10
I'm not sure I'm right. There are 2 square root signs there and it is the only way I can think of to use 2 square root signs.
