Question 79613
<pre><font size = 5><b>

-6x<sup>8</sup> + 8x<sup>3</sup> + 5x

Factorise over integers

-6x<sup>8</sup> + 8x<sup>3</sup> + 5x

Factorise out -x (always factorise out
a negative when the first term begins
with a negative, it causes all the
signs to change inside the parentheses).

-x(6x<sup>7</sup> - 8x<sup>2</sup> - 5)

That's as far as it will factorise.

Edwin</pre>