Answers

2014-06-08T15:28:13+08:00
First make it standard form 

 x^{2} +14x-32=0

use completing the square

 x^{2} +14x=32

 x^{2} +14x+49=32+49

(x+7)(x+7)=81

(x+7)^2=81

 \sqrt{(x+7)^2} = \sqrt{81}

x+7=9

x=9-7

x=2
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