1) 5 (-x)^3 (y z×6):-x y z^2
12
-5 x^3 y z:-2 x y z^2
5 x^2
2 z
2) {0, 8 m^2 n (k^2×12), 5:(-m)^4 n^2 k^3}
{0, 96 k^2 m^2 n, 5:k^3 m^4 n^2}
{0, 96 k^2 m^2 n, 5\/(k^3 m^4 n^2)}
1) 5 (-x)^3 (y z×6):-x y z^2
12
-5 x^3 y z:-2 x y z^2
5 x^2
2 z
2) {0, 8 m^2 n (k^2×12), 5:(-m)^4 n^2 k^3}
{0, 96 k^2 m^2 n, 5:k^3 m^4 n^2}
{0, 96 k^2 m^2 n, 5\/(k^3 m^4 n^2)}