SOLUTION: i have a question its -4 radical 10 plus 6 radical 40 I'm supposed to simplify each radical expression by combining like radicals but every time i simplify i get two different nu

Algebra ->  Radicals -> SOLUTION: i have a question its -4 radical 10 plus 6 radical 40 I'm supposed to simplify each radical expression by combining like radicals but every time i simplify i get two different nu      Log On


   

Question 1002953: i have a question
its -4 radical 10 plus 6 radical 40 I'm supposed to simplify each radical expression by combining like radicals but every time i simplify i get two different numbers for each radical PLEASE HELP ASAP
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
its -4 radical 10 plus 6 radical 40
--------
-4sqrt%2810%29+%2B+6sqrt%2840%29
= -4sqrt%2810%29+%2B+6sqrt%284%2A10%29
= -4sqrt%2810%29+%2B+12sqrt%2810%29
= 8sqrt%2810%29