Question 97128
{{{sqrt(4x + 1) + 3 = 0}}}
{{{sqrt(4x + 1) = -3}}}
No real number square rooted would give you a negative number.
{{{4x + 1 = 0 +- i*sqrt(3)}}}
{{{4x = -1 +- i*sqrt(3)}}}
{{{x = (-1 +- i*sqrt(3))/4}}}