SOLUTION: Subtract. Simplify by collecting like radical terms if possible. 5 square root of 18 - 7 square root of 2 = Simpify and use radicals as needed. Thanks for your help.

Question 322952: Subtract. Simplify by collecting like radical terms if possible.
5 square root of 18 - 7 square root of 2 =
Simpify and use radicals as needed.
Thanks for your help.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Simplify by collecting like radical terms if possible.
5 square root of 18 - 7 square root of 2 =
Simplify and use radicals as needed.
:

Factor inside the 1st radical to reveal a perfect square

Extract that perfect square

Now we have like terms, just do the math, and we have:

:
:
Check this on your calc: enter: = 11.313
and enter = 11.313 also
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