(1)(-ab)³=(-1)³a³b³=-a³b³
(2)(x²y³)⁴=(x²)⁴(y³)⁴=x^8 y^12
(4)(-2a³y⁴)³=(-2)³(a³)³(y⁴)³=-8a^9 y^12
(5)[(-3m³n²)³]²=[(-3)³(m³)³(n²)³]²=[-27m^9 n^6]²=(-27)²(m^9)²(n^6)²=729m^18 n^12
(1)(-ab)³=(-1)³a³b³=-a³b³
(2)(x²y³)⁴=(x²)⁴(y³)⁴=x^8 y^12
(4)(-2a³y⁴)³=(-2)³(a³)³(y⁴)³=-8a^9 y^12
(5)[(-3m³n²)³]²=[(-3)³(m³)³(n²)³]²=[-27m^9 n^6]²=(-27)²(m^9)²(n^6)²=729m^18 n^12