计算:8x^2y^4(-3x/4y^2)/(-x^2y/2)

问题描述:

计算:8x^2y^4(-3x/4y^2)/(-x^2y/2)

8x²y^4(-3x/4y²)/(-x²y/2)
=2x²(-3x)y²/(-x²y/2)
=12xy