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

Aug 18, 2016

$x = \sqrt{7} - 2$

#### Explanation:

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

${\left(x + 2\right)}^{2} = 7$

$x + 2 = \sqrt{7}$

$x = \sqrt{7} - 2$