解方程:(y+3)²=(5-3y)²
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/16 22:42:50
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解方程:(y+3)²=(5-3y)²
解方程:(y+3)²=(5-3y)²
解方程:(y+3)²=(5-3y)²
(y+3)²=(5-3y)²
移项得:
(y+3)²-(5-3y)²=0
[(y+3)+(5-3y)]*[(y+3)-(5-3y)]=0
(-2y+8)(4y-2)=0
-2y+8=0 或 4y-2=0
y1=4 y2=1/2
(y+3)^2=(5-3y)^2
所以:
y+3=5-3y 或 y+3= -(5-3y)
4y=2 或 2y=8
y=1/2 或 y=4
望伟大的您采纳
y+3=5-3y或y+3=-(5-3y)
得:
y=1/2或y=4