Ответ:
2) (9x²y³):(3xy)²=9x²y³/(3xy)²=9x²y³/9x²y²=y
4) (-x²y³z)⁴:(xyz) = x⁷y¹¹z³
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Ответ:
2) (9x²y³):(3xy)²=9x²y³/(3xy)²=9x²y³/9x²y²=y
4) (-x²y³z)⁴:(xyz) = x⁷y¹¹z³