1. (3x-5)²-(8x+7)² 2. (x-y+2)(-x+y+2) 3. (x+4)²(x1. (3x-5)²-(8x+7)²2. (x-y+2)(-x+y+2)3. (x+4)²(x-4)²(x²+16)4. a+b=-5,ab=3,求 a²+b²需要完整过程,谢谢.
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/15 05:55:55
![1. (3x-5)²-(8x+7)² 2. (x-y+2)(-x+y+2) 3. (x+4)²(x1. (3x-5)²-(8x+7)²2. (x-y+2)(-x+y+2)3. (x+4)²(x-4)²(x²+16)4. a+b=-5,ab=3,求 a²+b²需要完整过程,谢谢.](/uploads/image/z/1802713-49-3.jpg?t=1.+%283x-5%29%26%23178%3B-%288x%EF%BC%8B7%29%26%23178%3B+2.+%28x-y%EF%BC%8B2%29%28-x%EF%BC%8By%EF%BC%8B2%29+3.+%28x%EF%BC%8B4%29%26%23178%3B%28x1.+%283x-5%29%26%23178%3B-%288x%EF%BC%8B7%29%26%23178%3B2.+%28x-y%EF%BC%8B2%29%28-x%EF%BC%8By%EF%BC%8B2%293.+%28x%EF%BC%8B4%29%26%23178%3B%28x-4%29%26%23178%3B%28x%26%23178%3B%EF%BC%8B16%294.+a%EF%BC%8Bb%3D-5%2Cab%3D3%2C%E6%B1%82+a%26%23178%3B%EF%BC%8Bb%26%23178%3B%E9%9C%80%E8%A6%81%E5%AE%8C%E6%95%B4%E8%BF%87%E7%A8%8B%2C%E8%B0%A2%E8%B0%A2.)
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