Question 1102574
{{{((2p^(-7)z^3)/(3q^(-2)x^(-4)))^-1}}}
inverting the fraction eliminates the -1 exponent
{{{(3q^(-2)x^(-4))/(2p^(-7)z^3)}}}
reciprocal removes the neg from the exponent
{{{(3p^7)/(2q^2x^4z^3)}}}