Question 693322
{{{ x^3 – 3x^2 – 10x }}}
Factor out {{{ x }}}
{{{ x*( x^2 - 3x - 10 ) }}}
{{{ x*( x - 5 )*( x + 2 ) }}} ( I could see this by inspection )
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If you need a method, use the quadratic formula
{{{ x = (-b +- sqrt( b^2 - 4*a*c )) / (2*a) }}} 
{{{ a = 1 }}}
{{{ b = -3 }}}
{{{ c = -10 }}}
{{{ x = (-(-3) +- sqrt( (-3)^2 - 4*1*(-10) )) / (2*1) }}} 
{{{ x = ( 3 +- sqrt( 9 + 40 )) / 2 }}} 
{{{ x = ( 3 +- sqrt( 49 )) / 2 }}} 
{{{ x = ( 3 + 7) / 2 }}} 
{{{ x = 5 }}}
and, also
{{{ x = ( 3 - 7) / 2 }}} 
{{{ x = -2 }}}
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Rewriting these roots,
{{{ x - 5 = 0 }}}
{{{ x + 2 = 0 }}}
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So I get
{{{ x*( x - 5 )*( x + 2 ) }}}
OK