Difference between revisions of "User:Xyteron"

Revision as of 18:04, 28 November 2006

$a^4 - b^4 = (a^2 + b^2)(a^2 - b^2) = 729((a+b)^2 - 4ab) = 729(841 - 224) = 449,793.$

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−	<math>a^4 – b^4~~</math>~~ = (a^2 – b^2)(a^2 + b^2) = ~~<math>~~ 729((a+b)^2 – 4ab) ~~</math>~~ = 729(841 – 224) = 449,793</math>	+	<math>a^4 - b^4 = (a^2 + b^2)(a^2 - b^2) = 729((a+b)^2 - 4ab) = 729(841 - 224) = 449,793.</math>