Question 327010
{{{(t+z)/tz^2 + (7t+z)/t^2=((t+z)t)/(t^2z^2) + ((7t+z)z^2)/(t^2z^2)}}}

{{{(t+z)/tz^2 + (7t+z)/t^2=((t+z)t+(7t+z)z^2)/(t^2z^2)}}}
{{{(t+z)/tz^2 + (7t+z)/t^2=(t^2+zt+7tz^2+z^3)/(t^2z^2)}}}
{{{(t+z)/tz^2 + (7t+z)/t^2=(z^3+7tz^2+tz+t^2)/(t^2z^2)}}}