1, the root number 2 is multiplied by 2, and then the root number 4 is multiplied, which is the product of the root number 4 multiplied by the root number 2, and then the 2 under the root number is multiplied by 4, which is the root number 8, or it can be simplified to twice the root number 2.

For example: √ 2 * 2 = 2 √ 2 = √ 2 * √ 4 = √ (2 * 4) = √ (22 * 4) = √ 8.

2. The square root of the root number 3 times 6 is the product of 6 times 3 under the root number, that is, the root number 18, and then the root number 18 becomes 9 times 2, because 9 can root, so the root number 2 is finally simplified.

For example: √ 3 *√ 6 = √ (3 * 6) = √18 = √ (9 * 2) = √ 32 * 2) = 3 √ 2.

3. Multiply the root number 32 by the root number 25 to get the root number 800. The root number 800 drops to the product of 400 times 2 at the root number, and 400 is equal to 20 times 20, which is the square of 20. Finally, the root number 2 was reduced to 20 times.

For example: √ 32 * √ 25 = √ (32 * 25) = √ 800 = √ (400 * 2) = √ (202 * 2) = 20 √ 2.

Very simple, according to this formula:

√a*√b=√(a*b)

√a/√b=√(a/b)

Note: x n represents the n power of x, such as 2 2 = 2 * 2 = 42 3 = 2 * 2 * 2 = 8.