Posted by **Micah** on Sunday, February 3, 2008 at 9:15am.

(sqrt3+5 sqrt6)(sqrt3-5 sqrt6)

DRWLS-Just take the difference of the squares of the two terms, sqrt 3 and 5 sqrt6. Then you will have the answer. It will be a negative integer.

3sqrt is 9

6sq rt is 36

I add 5 to one and subtract 5 from the other? 50 and 55, then I am supposed to multiply? 50x55=2750? Or is the difference -5?

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