2x^6×x³-3x^9+5x²×x^7等于多少

来源：学生作业帮助网编辑：六六作业网时间：2024/12/26 00:26:19

2x^6×x³-3x^9+5x²×x^7等于多少2x^6×x³-3x^9+5x²×x^7等于多少2x^6×x³-3x^9+5x²×x^7等于

2x^6×x³-3x^9+5x²×x^7等于多少
2x^6×x³-3x^9+5x²×x^7等于多少

2x^6×x³-3x^9+5x²×x^7等于多少
解
2x^6*x³-3x^9+5x²*x^7
=2x^9-3x^9+5x^9
=(2-3+5)x^9
=4x^9