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October 21, 2014

October 21, 2014

Posted by **tara** on Thursday, September 5, 2013 at 2:12am.

x4 + 27x = 0

- college algebra -
**Steve**, Thursday, September 5, 2013 at 4:38amx^4 + 27x = 0

x(x^3+27) = 0

recall your sum-of-cubes factoring to get

x(x+3)(x^2-3x+9)

two real roots, two complex roots

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