9X^2=(X-1)^2

来源：学生作业帮助网编辑：六六作业网时间：2024/11/25 05:22:05

9X^2=(X-1)^29X^2=(X-1)^29X^2=(X-1)^29X^2=(X-1)^29X^2=X^2-2X+18X^2+2X-1=0(4X-1)(2X+1)=04X-1=0或2X+1=0X

9X^2=(X-1)^2
9X^2=(X-1)^2

9X^2=(X-1)^2
9X^2=(X-1)^2
9X^2=X^2-2X+1
8X^2+2X-1=0
(4X-1)(2X+1)=0
4X -1=0 或 2X+1=0
X=1/4 或 X= -1/2