x²+6x+8=x²+6x+9-?=(x+?)²-()²=?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 05:35:31
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x²+6x+8=x²+6x+9-?=(x+?)²-()²=?
x²+6x+8=x²+6x+9-?=(x+?)²-()²=?
x²+6x+8=x²+6x+9-?=(x+?)²-()²=?
x²+6x+8=x²+6x+9-1=(x+3)²-(1)²=(x+4)(x+2)