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Question

$1.00 factor the sum or difference of cubes#1

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lisalisa67
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Q:

factor the sum or difference of cubes

8x^3-1 (check by multiplying)

 

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  • Posted on Mar 15, 2010 at 5:44:35PM
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starboy
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A:
Preview: ... =(2x) ...
The full tutorial is about one word long .
 
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A:
Preview: ... )^2 + 1 + 2x] = (2x-1)[4x ...
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Answer + Rules, Explanation for Sum/ Difference of Cubes (useful for similar problems later too!)
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jas89
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A:
Preview: ... tep: You have 8(x^3) - 1. Turn this into the forms a^3 - b^3. a = 2x (the cube root of 8x^3 is the cube root of 8 (which is 2) times the cube root of x^3 (which is x)). b = 1 (the cube root of 1). We are working with the format (fo ...
The full tutorial is about 218 words long .