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Click to See Complete Forum and Search --> : What is the formula for solving a perfect cube? Got a college algebra final tomarrow.



hollywood
12-16-2002, 09:47 PM
and I do not remember. Thanks.

UnderTheSun
12-17-2002, 01:57 AM
Perfect cube? Tell me more.. I'm interested, and confused :confused:

bit-101
12-17-2002, 03:59 PM
yeah, you need to define a bit better what you are talking about. what is a "perfect cube" and what do you want to solve about it? do you want the surface of a cube? volume? the cube root of a number? the coordinates of the corners of a cube?

Dickee
12-17-2002, 09:52 PM
Hey hollywood!

if (Math.pow(cubedNum,1/3)==integer) cubedNum = perfectCube; :D

http://www.csun.edu/~math095/schedule/factoring/cubesquare.html



If a variable with an exponent has an exponent which is divisible by 3 then it is a perfect cube. To get the cube root, we simply divide the exponent by 3. For example x^9 is a perfect cube, its cube root is x^3 . x^11 is not a perfect cube.

The following is a list of perfect cubes:

1 = 1
2 = 8
3 = 27
4 = 64
5 = 125
6 = 216
7 = 343
8 = 512
9 = 729
10 = 1000

More info:
http://mathforum.org/library/drmath/view/56072.html

Richard

kann
12-19-2002, 09:34 AM
do you call it algebra?

hollywood
01-03-2003, 12:54 PM
Sorry I was not clear enough. I never figured it out, but no worries and I passed my final so I am okay.

I ment how do you factor a cubic polymonial: x^3 + x^2 + x + 1

there was some forumla to do it, but I cannot rember. Thanks for the help anyways.