Date: Mon, 17 May 1999 11:13:39 -0700
Level: Introductory Algebra
(2 + sq. root of 3) x (2 - sq. root of 3) = 1
Please show me the work.
The pattern that you might have recognized is the difference of squares which says that for any numbers a and b,
You can prove that this expression is true by expanding the right side as above. If you recognize
as the right side of the difference of squares expression with a = 2 and b = then you see immediately that
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