Sender: "Pat" 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.
Thank you.
Hi Pat The pattern that you might have recognized is the difference of squares which says that for any numbers a and b,
^{2} - b^{2} = (a - b)(a + 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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