x方-y方+2x+1等于?

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/23 03:08:31
x方-y方+2x+1等于?x方-y方+2x+1等于?x方-y方+2x+1等于?x方-y方+2x+1=(x^2+2x+1)-y^2=(x+1)^2-y^2=(x+y+1)(x-y+1)x方-y方+2x+

x方-y方+2x+1等于?
x方-y方+2x+1等于?

x方-y方+2x+1等于?
x方-y方+2x+1
=(x^2+2x+1)-y^2
=(x+1)^2-y^2
=(x+y+1)(x-y+1)

x方-y方+2x+1
=x方+2x+1-y方
=(x+1)方-y方
=(x+1+y)(x+1-y)

X方-y方+2x+1
=(X方+2X+1)-Y方
=(X+1)方-Y方
=(X+1+Y)(X+1-Y)