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Odd and Even: Difference of Squares (Posted on 2003-04-16) Difficulty: 3 of 5
Any product of two evens or two odds (sticking just to positives for the purpose of this problem) can be expressed as a difference of two perfect squares. 11*17=187=196-9 is an example.

A: Prove this idea.

B: Come up with a formula that gives the two perfect squares. Call the larger one a and the smaller one b.

See The Solution Submitted by Gamer    
Rating: 3.0000 (4 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionSolution To The ProblemK Sengupta2007-04-13 23:33:56
SolutionPuzzle SolutionK Sengupta2007-04-13 23:27:12
Other uses as wellGamer2003-04-16 11:15:51
re(2): solutionCharlie2003-04-16 10:18:56
SolutionSolutionBryan2003-04-16 08:51:53
re: solutionjennifer2003-04-16 08:34:01
SolutionsolutionCharlie2003-04-16 08:29:39
I think I got it.jennifer2003-04-16 08:07:59
Half of the solutionHank2003-04-16 08:02:24
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