Предмет: Алгебра, автор: bebr645

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Автор ответа: Аноним
0

Ответ:

Объяснение:

3. 1) -4m³n⁵·5n²m⁴=-20m³⁺⁴n⁵⁺²=-20m⁷n⁷

2) (-3m⁷n²)⁴=(-3)⁴m^(7·4) ·n^(2·4)=81m²⁸n⁸

4. 7x²-4x+8-(4x²+x-5)=7x²-4x²-4x-x+8+5=3x²-5x+13

5. 1) (3¹⁰·27³)/9⁹=(3¹⁰·(3³)³)/(3²)⁹=3^(10+3·3-2·9)=3¹⁰⁺⁹⁻¹⁸=3

2) (5 1/3)⁷·(3/16)⁸=16⁷/3⁷ ·3⁸/16⁸=16⁷⁻⁸·3⁻⁷⁺⁸=16⁻¹·3¹=3/16

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