Объяснение:
а) 2a^3 × (-0,5a) = -a^4
б)-4b × 0,25b^4 = -b^5
в) -b × c^6 × 2 × c^5 × b^3 = -2 × b^4 × c^11
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Объяснение:
а) 2a^3 × (-0,5a) = -a^4
б)-4b × 0,25b^4 = -b^5
в) -b × c^6 × 2 × c^5 × b^3 = -2 × b^4 × c^11