Question 476397
<pre>
x²+5670x+153 = 0

a=1, b=5670, c=153

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

{{{x = (-5670 +- sqrt( 5670^2-4*1*153 ))/(2*1) }}}

{{{x = (-5670 +- sqrt(32148900-612 ))/2 }}}

{{{x = (-5670 +- sqrt(32148900-612 ))/2 }}}


{{{x = (-5670 +- sqrt(32148288))/2 }}}

{{{x = (-5670 +- sqrt(576*55813))/2 }}}

{{{x = (-5670 +- sqrt(576)sqrt(55813) )/2 }}}

{{{x = (-5670 +- 24*sqrt(55813))/2 }}}

{{{x = (-5670 +- 24*sqrt(55813))/2 }}}

{{{x = (2(-2835 +- 12*sqrt(55813)))/2 }}}

{{{x = (cross(2)(-2835 +- 12*sqrt(55813)))/cross(2) }}}

{{{x = -2835 +- 12*sqrt(55813) }}}

Using the + and a calculator:  x = -.0269842554

Using the  and a calculator:  x = -.5669.973016

Edwin</pre>