Question 43521
{{{f(x)=2x^3-15x^2+44x-39}}}
{{{f(x)=(x-1.5)(2x^2 - 12x + 26)}}}
a=2 b=-12 c=26
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
{{{x = (12 +- sqrt( (-12)^2-4*2*26 ))/(2*2) }}}
{{{x = (12 +- sqrt( 144-208 ))/(4) }}}
{{{x = (12 +- sqrt( -64 ))/(4) }}}
{{{x = (12 +- 8i)/(4) }}}
{{{x = 12/4 +- 8i/4 }}}
{{{x = 3 +- 2i }}}
{{{ graph( 600, 600, -10, 10, -10, 10, 2x^3-15x^2+44x-39 ) }}}