Question 1195594
<pre>
{{{(2x^(-4)y^(-4))(-7x^4y^(-2))}}}

Multiply the coefficients 2 by -7 and get -14

Add the exponents of x<sup>-4</sup> and x<sup>4</sup> and get x<sup>0</sup>, which is 1.

Add the exponents of y<sup>-4</sup> and y<sup>-2</sup> and get y<sup>-6</sup>, which is {{{1^""/y^6}}}.

So now we have{{{-14*1*expr(1^""/y^6)}}}

which simplifies to {{{-14^""/y^6}}}

Edwin</pre>