使下列等式成立x²+20x+_____=﹙x+_____﹚²x²-5x+_____=﹙x-____﹚²x²-1/3x+_____=﹙x-______﹚²2x²-7x+_____=2﹙x-____﹚²
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 08:11:52
![使下列等式成立x²+20x+_____=﹙x+_____﹚²x²-5x+_____=﹙x-____﹚²x²-1/3x+_____=﹙x-______﹚²2x²-7x+_____=2﹙x-____﹚²](/uploads/image/z/8822340-36-0.jpg?t=%E4%BD%BF%E4%B8%8B%E5%88%97%E7%AD%89%E5%BC%8F%E6%88%90%E7%AB%8Bx%26%23178%3B%EF%BC%8B20x%EF%BC%8B_____%EF%BC%9D%EF%B9%99x%EF%BC%8B_____%EF%B9%9A%26%23178%3Bx%26%23178%3B%EF%BC%8D5x%EF%BC%8B_____%EF%BC%9D%EF%B9%99x%EF%BC%8D____%EF%B9%9A%26%23178%3Bx%26%23178%3B%EF%BC%8D1%2F3x%EF%BC%8B_____%EF%BC%9D%EF%B9%99x%EF%BC%8D______%EF%B9%9A%26%23178%3B2x%26%23178%3B%EF%BC%8D7x%EF%BC%8B_____%EF%BC%9D2%EF%B9%99x%EF%BC%8D____%EF%B9%9A%26%23178%3B)
使下列等式成立x²+20x+_____=﹙x+_____﹚²x²-5x+_____=﹙x-____﹚²x²-1/3x+_____=﹙x-______﹚²2x²-7x+_____=2﹙x-____﹚²
使下列等式成立x²+20x+_____=﹙x+_____﹚²
x²-5x+_____=﹙x-____﹚²
x²-1/3x+_____=﹙x-______﹚²
2x²-7x+_____=2﹙x-____﹚²
使下列等式成立x²+20x+_____=﹙x+_____﹚²x²-5x+_____=﹙x-____﹚²x²-1/3x+_____=﹙x-______﹚²2x²-7x+_____=2﹙x-____﹚²
100 10
25/4 5/2
1/36 1/6
49/16 7/4