(-3x³y²)x(3x²y-2xy²)的过程和结果谢谢~

问题描述:

(-3x³y²)x(3x²y-2xy²)的过程和结果谢谢~

(-3x³y²)x(3x²y-2xy²)
=-9x^5 y³ +6x^4 y^4