-3xy.(-2x²).(1/3x²y)²数学题：-3xy(-2x²)(1/3x²y)²呜呜~~求解答

-3xy.(-2x²).(1/3x²y)²数学题：-3xy(-2x²)(1/3x²y)²呜呜~~求解答
-3xy.(-2x²).(1/3x²y)²
数学题：-3xy(-2x²)(1/3x²y)²
呜呜~~求解答

-3xy.(-2x²).(1/3x²y)²数学题：-3xy(-2x²)(1/3x²y)²呜呜~~求解答
-3xy.(-2x²).(1/3x²y)²
=6x³y.(1/9x^4y²)
=2/3x^7y³

-3xy.(-2x²).(1/3x²y)²
=6x³y·（1/9x^4y²）
=2/3xy