(-2x²/y)²·(-2y²/3x)³÷(2y/x)^4

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(-2x²/y)²·(-2y²/3x)³÷(2y/x)^4(-2x²/y)²·(-2y²/3x)³÷(2y/x)^4(-

(-2x²/y)²·(-2y²/3x)³÷(2y/x)^4
(-2x²/y)²·(-2y²/3x)³÷(2y/x)^4

(-2x²/y)²·(-2y²/3x)³÷(2y/x)^4

(-2x²/y)²·(-2y²/3x)³÷(2y/x)^4
=4x⁴/y²*(-8y^6/27x³)*x⁴/16y⁴
=x*(-8/27)*x⁴/4 (约分得到)
=-2x^5/27