SOLUTION: I need to combine the radicals and show ALL the steps. please help me 3sqrt15+9sqrt15 I don't know if I'm typing this correctly. There is a number in front of the sqrt sig

Algebra ->  Square-cubic-other-roots -> SOLUTION: I need to combine the radicals and show ALL the steps. please help me 3sqrt15+9sqrt15 I don't know if I'm typing this correctly. There is a number in front of the sqrt sig      Log On


   



Question 431937: I need to combine the radicals and show ALL the steps.
please help me
3sqrt15+9sqrt15
I don't know if I'm typing this correctly. There is a number in front of the sqrt sign which means its cube root right?

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
If it's
3root%283%2C15%29+%2B+9root%283%2C15%29+=+12root%283%2C15%29
Only 1 step, add them.