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10. Спростіть вираз: * \( -2 a^{-3} b \cdot 3 a^{7} b^{-3} \cdot\left(-a^{-4} b^{5}\right) \).

Ask by Bird Martinez. in Germany
Feb 21,2025

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Упростите выражение: –2a⁻³b · 3a⁷b⁻³ · (–a⁻⁴b⁵) = 6b³.

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The Deep Dive

Давайте спростимо вираз крок за кроком! Почнемо з множення чисел та степенів. Спочатку обчислим коефіцієнти: \( -2 \cdot 3 \cdot (-1) = 6 \). Тепер додамо степені для \( a \): \(-3 + 7 - 4 = 0\), отже \(a^0 = 1\). Далі, для \( b \): \(1 - 3 + 5 = 3\), отже залишимо \( b^3 \). Отже, вираз спроститься до: \(6 b^3\).

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