Ответ:
1)...*3b⁴=12b⁶
12b⁶/3b⁴=4b²
4b²*3b⁴=12b⁶
2)-5a⁵b²*...=-20a⁶b⁸
-20a⁶b⁸/-5a⁵b²=4ab⁶
4ab⁶*(-5a⁵b²)=-20a⁶b⁸
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Ответ:
1)...*3b⁴=12b⁶
12b⁶/3b⁴=4b²
4b²*3b⁴=12b⁶
2)-5a⁵b²*...=-20a⁶b⁸
-20a⁶b⁸/-5a⁵b²=4ab⁶
4ab⁶*(-5a⁵b²)=-20a⁶b⁸