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How do you solve using completing the square method $x^2+4x-3=0$ ?

1 Answer

Aug 18, 2016

$x=sqrt(7)-2$

Explanation:

$x^2+4x=3$
$x^2+4x+4=3+4$

$(x+2)^2=7$

$x+2=sqrt(7)$

$x=sqrt(7)-2$

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