ГДЗ Математика 7 клас Істер (2024)

Спростіть вираз: 1) 15m2 ∙ (4m3)2 = 15m2 ∙ 16m6 = 240m8; 2) –0,5m5 ∙ (2m3)4 = –0,5m5 ∙ 16m12 = –8m17; 3) (–3a3b4)4 ∙ (–1/81ab3) = 81a12b16 ∙ (–1/81ab3) = –a13b19; 4) (–2/3ac4)3 ∙ 18a5c = –8/27 ∙ 18/1a3c12a5c = –16/3a8c13 = –51/3a8c13.