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April 19, 2014

April 19, 2014

Posted by **jasmine** on Wednesday, September 21, 2011 at 8:02pm.

- math -
**Reiny**, Wednesday, September 21, 2011 at 8:08pmyour expression factors by grouping

let

x^3 + 9x^2 - 4x - 36 = 0

x^2(x+9) - 4(x+9) = 0

(x+9)(x^2-4) = 0

(x+9)(x+2)(x-2) = 0

x = -9, -2, 2

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