Friday

April 18, 2014

April 18, 2014

Posted by **jordan** on Thursday, August 29, 2013 at 1:34pm.

- college algebra -
**Steve**, Thursday, August 29, 2013 at 1:53pmx^2-14x+49=16

(x-7)^2 = 16

x-7 = ±4

x = 7±4 = 3,11

or, just use the quadratic formula. Not really necessary here, since the left side was conveniently a perfect square.

x^2 - 14x + 33 = 0

x = (14±√(196-132))/2

= (14±√64)/2

= 7±4

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