Ответ:
а) 7x⁵y³-6x⁷y⁵*(-7/6*⁻²y⁻²)6x⁷y⁵*7/6x⁻²y⁻²)б) -3/8a²-2/5a⁵b*15/16a⁻⁷b⁻¹-3/8a⁻²-3/8*1/a²
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Ответ:
а) 7x⁵y³
-6x⁷y⁵*(-7/6*⁻²y⁻²)
6x⁷y⁵*7/6x⁻²y⁻²)
б) -3/8a²
-2/5a⁵b*15/16a⁻⁷b⁻¹
-3/8a⁻²
-3/8*1/a²