SOLUTION: How would I simplify this expression? 6 / 3 - √18

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Question 309827: How would I simplify this expression?
6 / 3 - √18
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
How would I simplify this expression?
assume the problem is:
6%2F%283+-+sqrt%2818%29%29
Factor inside the radical to reveal a perfect square
6%2F%283+-+sqrt%289%2A2%29%29
Extract 3
6%2F%283+-+3%2Asqrt%282%29%29
Factor out 3
6%2F%283%281+-+sqrt%282%29%29%29
3 cancels into 6
2%2F%28%281+-+sqrt%282%29%29%29