ГДЗ Алгебра 7 клас Мерзляк (2024)

Спростіть вираз: 1) 2a3 ∙ (–5a4b5)2 = 2a3 ∙ 25a8b10 = 50a11b10; 2)(–x6y)3 ∙ 11x4y5 = –x18y3 ∙ 11х4y5 = –11х22y8; 3) (–0,6а3b5с6)2 ∙ За2с8 = 0,36a6b10с12 ∙ Зa2с8 = 1,08a8b10c20; 4) –13/11m4n9 ∙ (–1/7mn3)2 = –14/11m4n9 ∙ 1/49m2n6 = –2/77m6n15; 5) 17/9x7y2 ∙ (3/4x2y9)4 = 16/9x7y2 ∙ 81/256x8y36 = 9/16x15y38; 6) –(–2c2d5)7 ∙ (–1/2c4d5)4 = 128c14d35 ∙ 1/16c16d20 = 8c30d55.