Homework Help: Algebra

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?

Algebra - drwls, Sunday, February 3, 2008 at 11:08am
sqrt 6 is not 36. You got that backwards

The squares of the two terms (sqrt 3 and 5sqrt6) are 3 and 150. The answer is 3-150 = -147

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