x²×(-xy³)×y²-x³×y³×(-y)²
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/27 19:37:13
x²×(-xy³)×y²-x³×y³×(-y)²x²×(-xy³)×y²-x³×y³×(-
x²×(-xy³)×y²-x³×y³×(-y)²
x²×(-xy³)×y²-x³×y³×(-y)²
x²×(-xy³)×y²-x³×y³×(-y)²
x²×(-xy³)×y²-x³×y³×(-y)²
= -x^3y^5-x^3y^5
= -2x^3y^5