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用配方法解方程2x2+4x+1=0,配方后的方程是A.(2x+2)2=-2B.(2x+2)...
试题详情
用配方法解方程2x
2+4x+1=0,配方后的方程是( )
A.(2x+2)
2=-2
B.(2x+2)
2=-3
C.(x+
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
)
2=
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
D.(x+1)
2=
相关试题
-
用配方法解方程2x2+4x+1=0,配方后的方程是( )
A.(2x+2)2=-2
B.(2x+2)2=-3
C.(x+
)2=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
D.(x+1)2=
-
用配方法解方程2x2+4x+1=0,配方后的方程是( )
A.(2x+2)2=-2
B.(2x+2)2=-3
C.(x+
)2=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
D.(x+1)2=
-
用配方法解方程2x2+4x+1=0,配方后的方程是( )
A.(2x+2)2=-2
B.(2x+2)2=-3
C.(x+
)2=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
D.(x+1)2=
-
用配方法解方程2x2+4x+1=0,配方后的方程是( )
A.(2x+2)2=-2
B.(2x+2)2=-3
C.(x+
)2=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
D.(x+1)2=
-
用配方法解方程2x2+4x+1=0,配方后的方程是( )
A.(2x+2)2=-2
B.(2x+2)2=-3
C.(x+
)2=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
D.(x+1)2=
-
用配方法解方程2x2+4x+1=0,配方后的方程是( )
A.(2x+2)2=-2
B.(2x+2)2=-3
C.(x+
)2=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
D.(x+1)2=
-
用配方法解方程2x2+4x+1=0,配方后的方程是( )
A.(2x+2)2=-2
B.(2x+2)2=-3
C.(x+
)2=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
D.(x+1)2=
-
用配方法解方程2x2+4x+1=0,配方后的方程是( )
A.(2x+2)2=-2
B.(2x+2)2=-3
C.(x+
)2=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
D.(x+1)2=
-
用配方法解方程2x2+4x+1=0,配方后的方程是( )
A.(2x+2)2=-2
B.(2x+2)2=-3
C.(x+
)2=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
D.(x+1)2=
-
用配方法解方程2x2+4x+1=0,配方后的方程是( )
A.(2x+2)2=-2
B.(2x+2)2=-3
C.(x+
)2=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACfSURBVDhP3VNBDsAgCOvL+BPf4TM8hacwmZnD
uc2L2WEmxphgi22BTxYWFpg4gVysx6wUyg6g7KeCWuX884JdpNChbtZTrJVePNg6pzgauzsDdI6w
KFEtMEUoEs+hgoeKTboITSlKUsJUuxcm1KGMvwi6jHD9hfKbWV0/9WmiMBfiku27udhHY5yJhhCd
55DEIB13RFOjUSfVZ2a9eL4BYBXpBOX9qe0AAAAASUVORK5CYII=
)
D.(x+1)2=