Question 336726
<pre><b>
{{{4x^2 + 48x +104 = 0}}}

To make things easier, divide every term by 4

{{{4x^2/4+48x/4+104/4=0/4}}}

{{{x^2+12x+26=0}}}

{{{a=1}}}, {{{b=12}}}, {{{c=26}}}

{{{x = (-12 +- sqrt( 12^2-4*1*26 ))/(2*1) }}}

{{{x = (-12 +- sqrt(144-104 ))/2 }}}

{{{x = (-12 +- sqrt(40 ))/2 }}}

{{{x = (-12 +- sqrt(4*10))/2 }}}

{{{x = (-12 +- 2sqrt(10))/2 }}} 

Factor 2 out of the top:

{{{x = (2(-6 +- sqrt(10)))/2 }}}

{{{x = (cross(2)(-6 +- sqrt(10)))/cross(2) }}}

{{{x = -6 +- sqrt(10)) }}}

The two solutions are 

{{{x = -6 + sqrt(10)) }}} and {{{x = -6 - sqrt(10)) }}}

Edwin</pre>