初二数学x²+6x+_________=﹙x+___﹚²,x²-3x+____=﹙x-__﹚²
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/24 07:48:11
![初二数学x²+6x+_________=﹙x+___﹚²,x²-3x+____=﹙x-__﹚²](/uploads/image/z/1806082-34-2.jpg?t=%E5%88%9D%E4%BA%8C%E6%95%B0%E5%AD%A6x%26%23178%3B%EF%BC%8B6x%EF%BC%8B_________%EF%BC%9D%EF%B9%99x%EF%BC%8B___%EF%B9%9A%26%23178%3B%2Cx%26%23178%3B%EF%BC%8D3x%EF%BC%8B____%EF%BC%9D%EF%B9%99x%EF%BC%8D__%EF%B9%9A%26%23178%3B)
初二数学x²+6x+_________=﹙x+___﹚²,x²-3x+____=﹙x-__﹚²
初二数学x²+6x+_________=﹙x+___﹚²,x²-3x+____=﹙x-__﹚²
初二数学x²+6x+_________=﹙x+___﹚²,x²-3x+____=﹙x-__﹚²
x²+6x+9=﹙x+3﹚²,
x²-3x+9/4=﹙x-3/2﹚²
9,3,2.25,1.5
x²+6x+(9)=(x+3)²
x²-3x+(9/4)=(x-3/2)²
望采纳!!!
9(2x×根号6x)
+-3(根号6x)
6/4
3/2