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  LiveWire / Teen Forums / School & Homework Connection / Viewing Topic

Help--cubed equation
Replies: 7Last Post May 10 8:42pm by Black Sheep
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( Anonymous )

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(2-t)^3
i know how to do the squared but cubed throws me off

3:23 pm on May 10, 2008
snowcone200


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(2-t) x (2-t) x (2-t)

You do the rest.


3:24 pm on May 10, 2008 | Joined Mar. 2007 | 67 Days Active
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shesallithinkabout


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its just (2-t)(2-t)(2-t) so just square it hten times it by 2-t again

3:24 pm on May 10, 2008 | Joined May 2008 | 9 Days Active
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( Anonymous )

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Quote: from snowcone200 at 3:24 pm on May 10, 2008

(2-t) x (2-t) x (2-t)

You do the rest.


i wrote that out but it gets confusing

3:25 pm on May 10, 2008
snowcone200


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Quote: from Anonymous at 3:25 pm on May 10, 2008

Quote: from snowcone200 at 3:24 pm on May 10, 2008

(2-t) x (2-t) x (2-t)  

 You do the rest.


i wrote that out but it gets confusing

(2 - t ) x (2 - t)   First Outer Inner Last(FOIL)

2 x 2 = 4

2 x t = 2t

t x 2 = 2t

t x t = t*2

(4x4txt*2) x (2-t)

NOW do the rest.


3:29 pm on May 10, 2008 | Joined Mar. 2007 | 67 Days Active
Join to learn more about snowcone200 Georgia, United States | Questioning Male | 1825 Posts | 2738 Points
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hithere


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what are you...doing...with this equation?

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8:37 pm on May 10, 2008 | Joined Dec. 2005 | 571 Days Active
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Black Sheep


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(2-t)(2-t)(2-t)

Foil. It's basic algebra.

(4-2t-2t-t^2)(2-t)
(4-4t-t^2)(2-t)
(8-4t-8t+4t^2-2t^2+t^3)

= t^3 + 2t^2 - 12t + 8

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8:42 pm on May 10, 2008 | Joined Aug. 2007 | 238 Days Active
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