Вправи 301 - 400 » 389
Спростіть вираз: 1) 3m2n ∙ 0,4mn3 = 1,2m3n4; 2) 71/3b3c2 ∙ 9/11a4b5 = 22/3 ∙ 9/11b3c2a4b5 = 6a4b8c2; 3) –5x4y2z8 ∙ (–0,8x6y8z2) = 4x10y10z10; 4) –53/7abc ∙ 3,5a12b10c = –38/7 ∙ 7/2abca12b10c = –19a13b11c2.
Спростіть вираз: 1) 3m2n ∙ 0,4mn3 = 1,2m3n4; 2) 71/3b3c2 ∙ 9/11a4b5 = 22/3 ∙ 9/11b3c2a4b5 = 6a4b8c2; 3) –5x4y2z8 ∙ (–0,8x6y8z2) = 4x10y10z10; 4) –53/7abc ∙ 3,5a12b10c = –38/7 ∙ 7/2abca12b10c = –19a13b11c2.