Question 988229
 2x to the power of negative 3 y power 0 z power of negative 7
Over 3 power of negative 2 x power of negative 5 y power of 6 z power of 10 
{{{(2x^-3*y^0*z^-7)/(3^-2*x^-5*y^6*z^10)}}}
any term with a 0 exponent =1 so we can get rid of that
{{{(2x^-3*z^-7)/(3^-2*x^-5*y^6*z^10)}}}
The reciprocal changes the sign of the exponent
combine like terms in a manner that will eliminate neg exponents
{{{(3^2*2x^((-3+5)))/(y^6*z^((10+7)))}}}
{{{(9*2x^2)/(y^6*z^17)}}} = {{{(18x^2)/(y^6*z^17)}}}