(-x)^6-3x³·3x³-(-2x²)·(-2x²)·(-2x²)
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/29 04:46:39
(-x)^6-3x³·3x³-(-2x²)·(-2x²)·(-2x²)
2x³·x³·x³-3x³·3x³·3x³+5x²·x^7
3a³·a^4+2a·a²·a^4-4a^5·(-a)²
(6/7)²¹×(7/6)²³
2x³·x³·x³-3x³·3x³·3x³+5x²·x^7
3a³·a^4+2a·a²·a^4-4a^5·(-a)²
(6/7)²¹×(7/6)²³
(-x)^6-3x³·3x³-(-2x²)·(-2x²)·(-2x²)
=x^6-3x^6+8x^6
=6x^6
2x³·x³·x³-3x³·3x³·3x³+5x²·x^7
=2x^9-27x^9+5x^9
=-20x^9
3a³·a^4+2a·a²·a^4-4a^5·(-a)²
=3a^7+2a^7-4a^7
=a^7
(6/7)²¹×(7/6)²³
=(6/7×7/6)²¹×(7/6)²
=1²¹×(7/6)²
=49/36
=x^6-3x^6+8x^6
=6x^6
2x³·x³·x³-3x³·3x³·3x³+5x²·x^7
=2x^9-27x^9+5x^9
=-20x^9
3a³·a^4+2a·a²·a^4-4a^5·(-a)²
=3a^7+2a^7-4a^7
=a^7
(6/7)²¹×(7/6)²³
=(6/7×7/6)²¹×(7/6)²
=1²¹×(7/6)²
=49/36
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