一道初2数学题(x+k)(x+k+1)+1/4

来源：学生作业帮助网编辑：六六作业网时间：2024/10/03 04:09:36

一道初2数学题(x+k)(x+k+1)+1/4一道初2数学题(x+k)(x+k+1)+1/4一道初2数学题(x+k)(x+k+1)+1/4原式=(X+K)*（X+K）+(X+K)+1/4=(X+K)*

一道初2数学题(x+k)(x+k+1)+1/4
一道初2数学题(x+k)(x+k+1)+1/4

一道初2数学题(x+k)(x+k+1)+1/4
原式=(X+K)*（X+K）+(X+K)+1/4
=(X+K)*（X+K）+2*1/2(X+K)+1/2*1/2
=(X+K+1/2)*(X+K+1/2)

(x+k)(x+k+1)+1/4=(x+k+1/2)的平方