Question 765540
{{{( x + 2 )^2 = -7}}}

{{{ x^2+4x + 4 = -7}}}

{{{ x^2+4x + 4+7 = 0}}}

{{{ x^2+4x +11= 0}}}


{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}

{{{x = (-4 +- sqrt( 4^2-4*1*11 ))/(2*1) }}}

{{{x = (-4 +- sqrt( 14-44 ))/2 }}}

{{{x = (-4 +- sqrt( -30 ))/2 }}}

{{{x = (-4 +- 5.48i)/2 }}}

solutions:

{{{x = (-4 +5.48i)/2 }}}

{{{x = -2+2.74i }}}

and

{{{x = (-4 -5.48i)/2 }}}

{{{x = -2-2.74i }}}


{{{ graph(600,600, -10, 10, -5, 20, x^2+4x +11) }}}