Решение:
1.-4a^3b^4×3a^4b^5 = - 12а^7b^9;
2. (-3a^3b^5)^3 = - 27a^9b^15.
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Решение:
1.-4a^3b^4×3a^4b^5 = - 12а^7b^9;
2. (-3a^3b^5)^3 = - 27a^9b^15.