(-x)^6-3x³·3x³-(-2x²)·(-2x²)·(-2x²)2x³·x³·x³-3x³·3x³·3x³+5x²·x^73a³·a^4+2a·a²·a^4-4a^5·(-a)²(6/7)²¹×(7/6)²³
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/02 10:19:30
![(-x)^6-3x³·3x³-(-2x²)·(-2x²)·(-2x²)2x³·x³·x³-3x³·3x³·3x³+5x²·x^73a³·a^4+2a·a²·a^4-4a^5·(-a)²(6/7)²¹×(7/6)²³](/uploads/image/z/3737991-39-1.jpg?t=%28-x%29%5E6-3x%26%23179%3B%C2%B73x%26%23179%3B-%28-2x%26%23178%3B%29%C2%B7%28-2x%26%23178%3B%29%C2%B7%28-2x%26%23178%3B%292x%26%23179%3B%C2%B7x%26%23179%3B%C2%B7x%26%23179%3B-3x%26%23179%3B%C2%B73x%26%23179%3B%C2%B73x%26%23179%3B%2B5x%26%23178%3B%C2%B7x%5E73a%26%23179%3B%C2%B7a%5E4%2B2a%C2%B7a%26%23178%3B%C2%B7a%5E4-4a%5E5%C2%B7%28-a%29%26%23178%3B%286%2F7%29%26%23178%3B%26%23185%3B%C3%97%287%2F6%29%26%23178%3B%26%23179%3B)
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(-x)^6-3x³·3x³-(-2x²)·(-2x²)·(-2x²)2x³·x³·x³-3x³·3x³·3x³+5x²·x^73a³·a^4+2a·a²·a^4-4a^5·(-a)²(6/7)²¹×(7/6)²³
(-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
(-x)^6-3x³·3x³-(-2x²)·(-2x²)·(-2x²)2x³·x³·x³-3x³·3x³·3x³+5x²·x^73a³·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