Not necessarily. If it is the same radical number, then the signs cancel out. Radical 5 times radical 5 equals 5. But if they are different, then you multiply the numbers and leave them under the radical sign. Example: radical 5 * radical 6 = radical 30
Sqrt[5*radical(68)] = -6.4211 and +6.4211.
i
radical 30
It is sqrt[100*sqrt(2)] = 10*fourth root of 2.
Here is an example, radical 20 plus radical 5. Now radical 20 is 2(radical 5) so we can add radical 5 and 2 radical 5 and we have 3 radical 5.
2 times radical 5 or about 4.472135955
Not necessarily. If it is the same radical number, then the signs cancel out. Radical 5 times radical 5 equals 5. But if they are different, then you multiply the numbers and leave them under the radical sign. Example: radical 5 * radical 6 = radical 30
Sqrt[5*radical(68)] = -6.4211 and +6.4211.
2 radical 30
i
radical 30
-3*radical(2)*radical(50) = -3*radical(2*50) = -3*radical(100) = -3*10 = -30
It is sqrt[100*sqrt(2)] = 10*fourth root of 2.
4√5 + 4√5 = 8√5.
The square root (radical) of 5 is about 2.2361 (an irrational number)
5 radical 2 (5√2)