There are several options for multiplying the number on the expression under the root. Consider them.
How to multiply the root to the number - the 1st case
If in the example the number under the root of the square of some number, then you need to calculate the root of this number. For example: 2 * √9. √9 equals 3rd. 2 Multiply to 3 \u003d 6.
How to multiply the root number - 2nd case
If the number is multiplied by such a value in the root, which is not a square of any number, then you need to build a number that is rooted in the square and enter it into the root. For example: 2 * √8 \u003d √4 * 8 \u003d √32.
How to multiply the root to the number - 3rd case
This method applies less frequently. If an expression of this type is given, as in the second case, it is possible to extract the root and multiply the resultant number to the number that stands on the root. For example: 2 * √8 \u003d 2 * 2.83 ≈ 5.66 (√8 ≈ 2.83)
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