Question

Identifying Radicals in Simplest Form

Which expressions are listed in the simplest form? Check all that apply

Answer 1

1,2,5

Explanation:

Answer 2

5
`√(3b)`, 2
`√(21)`,
`√(5)`

Explanation:

All of those are in simplest form because the numbers under the radical are either prime numbers (numbers that can not be a product of two smaller natural numbers, for example 5 can only be multiplied to by 5 and 1) or the number under the radical only has factors that are prime numbers (for example 21, the factors of 21 are 7 and 3, which are prime numbers).