(-y/2x)².(-3x/2y)的三次方÷(-3x/2ay)²(要详细过程!急)
问题描述:
(-y/2x)².(-3x/2y)的三次方÷(-3x/2ay)²(要详细过程!急)
答
(-y/2x)².(-3x/2y)的三次方÷(-3x/2ay)²
=y²/4x² * (-27x³/8y³)÷(9x²/4a²y²)
=-27x/8y÷(9x²/4a²y²)
=-3x³/2a²y³