SOLUTION: Can anyone help me to simplify by combining like terms: sqrt63 - 2sqrt28 + 5sqrt7 I appreciate any help with this radical expression. sean32485

Question 79189: Can anyone help me to simplify by combining like terms:
sqrt63 - 2sqrt28 + 5sqrt7
I appreciate any help with this radical expression.
sean32485
Found 2 solutions by ankor@dixie-net.com, pandion:
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Can anyone help me to simplify by combining like terms:
sqrt63 - 2sqrt28 + 5sqrt7
:
note the squares inside each radical:

:
Extract those squares:

:

:
Combine like terms and you have:
3 - 4 + 1 = 0 so you have:
or just 0
:
:
you can check it on good calculator: enter: It should = 0

Answer by pandion(6) (Show Source): You can put this solution on YOUR website!

same indexes and bases so add directly

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