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March 4, 2015

March 4, 2015

Posted by **jenny** on Monday, October 15, 2012 at 4:52pm.

- maths -
**Steve**, Monday, October 15, 2012 at 5:08pmunless ±1 or ±13 is a root, you're stuck.

It's easy to show that -1 is a root. So, you have

(x+1)(x^2+5x+13)

Now you gotta solve the quadratic, but that's old hat by now.

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