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ГДЗ Алгебра 7 клас Мерзляк (2024)
§ 1. Алгебраїчні вирази
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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.
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.