Question 30810
{{{ 5x^2 - 3x(4-x) + 13x  }}}... what about it? Simplify? If so, then say so. As good as we are, we are not mind-readers.


{{{ 5x^2 - 3x(4-x) + 13x  }}}
{{{ 5x^2 - 12x + 3x^2 + 13x  }}}
{{{ 8x^2 - 12x + 13x  }}}
{{{ 8x^2 + x  }}}


this is an answer or we could factorise: 
{{{ x(8x + 1)  }}}


jon.