Question 646110
{{{5x^3=20x}}}

{{{5x^3-20x=0}}}

{{{5x(x^2-4)=0}}}

{{{5x(x^2-2^2)=0}}}

{{{5x(x-2)(x+2)=0}}}

solutions:

if {{{5x=0}}}.....=>...{{{x=0}}}

if {{{x-2=0}}}....=>...{{{x=2}}}

if {{{x+2=0}}}....=>...{{{x=-2}}}


{{{ graph( 600, 600, -10, 10, -20, 20, 5x^3-20x) }}}