# How do you solve  x^2 + 2x + 1 = 0?

Jan 27, 2016

${x}^{2} + 2 x + 1 = {\left(x + 1\right)}^{2}$
This represents the equation for a right way up parabola touching the $x$-axis at $x = - 1$. The $y$-intercept is $+ 1$