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March 6, 2015

Posted by **mike** on Monday, December 6, 2010 at 5:29pm.

2) 3x^2-x-4

- algebra -
**bobpursley**, Monday, December 6, 2010 at 5:38pmThe first is the sum of two cubes, you have a formula for that.

The second:

(3x -4)(x +1)

- algebra -
**Damon**, Monday, December 6, 2010 at 5:39pma^3 + b^3 = (a+b)(a^2-ab+b^2)

here

a = 3x

b = 2

You take it from there

(3x-4)(x+1)

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