first make it standard form
[tex] x^{2} +14x-32=0[/tex]
use completing the square
[tex] x^{2} +14x=32[/tex]
[tex] x^{2} +14x+49=32+49[/tex]
[tex](x+7)(x+7)=81[/tex]
[tex](x+7)^2=81[/tex]
[tex] \sqrt{(x+7)^2} = \sqrt{81} [/tex]
[tex]x+7=9[/tex]
[tex]x=9-7[/tex]
[tex]x=2[/tex]
