Elements Of Electromagnetics Sadiku 7th Edition Solution 'link' -
Integrating the first equation with respect to $x$, we get: $V(x, y, z) = -\int (x^2 + y^2) dx = -\fracx^33 - y^2x + f(y, z)$.
Integrating the first equation with respect to $x$, we get: $V(x, y, z) = -\int (x^2 + y^2) dx = -\fracx^33 - y^2x + f(y, z)$.