SOLUTION: Please help me with this problem Perform the indicated operations: √[50] + 2√[32] - √[8] THanks

Algebra ->  Radicals -> SOLUTION: Please help me with this problem Perform the indicated operations: √[50] + 2√[32] - √[8] THanks       Log On


   

Question 36652: Please help me with this problem


Perform the indicated operations:
√[50] + 2√[32] - √[8]


THanks
Answer by Cintchr(481) About Me  (Show Source):
You can put this solution on YOUR website!
+sqrt%2850%29+%2B+2sqrt%2832%29+-+sqrt%288%29+
First thing is that you have to work out the roots. Let's start with the 50.
+sqrt%285%2A5%2A2%29+%2B+2sqrt%2832%29+-+sqrt%288%29+
+5sqrt%282%29+%2B+2sqrt%2832%29+-+sqrt%288%29+
Now the root of 32
+5sqrt%282%29+%2B+2sqrt%282%2A2%2A2%2A2%2A2%29+-+sqrt%288%29+
+5sqrt%282%29+%2B+8sqrt%282%29+-+sqrt%288%29+
now the root of 8
+5sqrt%282%29+%2B+8sqrt%282%29+-+sqrt%282%2A2%2A2%29+
+5sqrt%282%29+%2B+8sqrt%282%29+-+2sqrt%282%29+
Now that all of the roots are the same, they are treated much like variables.
5 + 8 - 2 = 11
+11sqrt%282%29+