Question 1131892
{{{f(x) = 2x^4 +4x^3 +2x^2 - 2x + 1}}}


{{{ graph( 600, 600, -10, 10, -10, 10, 2x^4 +4x^3 +2x^2 - 2x + 1) }}}

the function defined by {{{f(x)}}} have {{{no}}} {{{real}}}{{{ zeros }}}