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OpenStudy (anonymous):
x^2 +4x-4=0 please explain how to solve this quadratic equation.....
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OpenStudy (anonymous):
complete the sqaure would be fastest.
OpenStudy (anonymous):
x^2 +4x+4 -4 -4 =0
OpenStudy (anonymous):
(x+2)^2 -8 =0
OpenStudy (anonymous):
\[(x+2)= +- \sqrt{8}\]
OpenStudy (anonymous):
\[x=-2+-2\sqrt{2}\]
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OpenStudy (anonymous):
okay thank you !
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