Question 495928
{{{ 3x^3 - 588x = 0 }}}
{{{ 3x*(x^2 - 196) = 0 }}}
{{{ 3x*( x + 14 )*( x - 14 ) = 0 }}}
For this equation to be true, either
{{{ x = 0 }}}
{{{ x = 14 }}}
{{{ x = -14 }}}
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check answers:
{{{ 3*14^3 - 588*14 = 0 }}}
{{{ 8232 - 8232 = 0 }}}
{{{ 0 = 0 }}}
and
{{{ 3*(-14)^3 - 588*(-14) = 0 }}}
{{{ -8232 + 8232 = 0 }}}
{{{ 0 = 0 }}}
and
{{{ 3*0^3 - 588*0 = 0 }}}
{{{ 0 - 0 = 0 }}}
{{{ 0 = 0 }}}
OK