Question 344307
{{{4x^4 + 37x^2 +9 = 0}}}
You can factor this equation.
{{{(4x^2+1)(x^2+9)=0}}}
Two solutions:
{{{4x^2+1=0}}}
{{{4x^2=-1}}}
{{{x^2=-1/4}}}
{{{highlight(x=0 +- (1/2)i)}}} where {{{i=sqrt(-1)}}}
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{{{x^2+9=0}}}
{{{x^2=-9}}}
{{{highlight(x=0 +- 3i)}}} where {{{i=sqrt(-1)}}}