saya minta tolong ya kaka kaka semua

= p^2 × -p^2 × q^4 / q × q^4 × p^3
= p^2 × -p^2 / q x p^3
= p^-1 x -p^2 / q
= 1/p × -p^2 / q
= -p^2/pq
= - p/q