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以、-为根的一元二次方程是A.x2-x+1=0B.x2-x-1=0C.x2+x+1=0D....
试题详情
以
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jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC/SURBVDhPvVPBDYQwDMtk2SnrdJmMklEMobQk
7ak96dAh8SiY2LENYXPRSwAVEFG9ucDCWIIVsOj9SCEO6meATDV9YYXTlFmk08UJ4xYqhPAeeULS
Uz8NAENhQZPbJneACqPE/W7EBXDlkRen0HYmF9VNambRQ/VWFotI9xSzwEf0YNRnnj3Fd5XzkJpJ
ydIrrLNFvWa1UTlus9SodR+GNqU1e2izhrDHLZZDMSYffm2193JcM/52gwd/DWsR6QE4xeDwtHXW
SwAAAABJRU5ErkJggg==
)
、-
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC7SURBVDhPvZPZEYAwCESpjJ5oJ81QCqUgmBgh
ifqhY2Ycj3Cs7Avow4KPAqQoAij4RZyKWgtWwqKyf7ZnC4oxoCJtsyYyjQGxINOqxZl5oSGUaGKx
VEW+pjlIQYUuehFgKpOOoYJowfEvPOMY0jCDpYbRm6/MuvHc9DUXF/dfRcZhBR+qBnewI1SJitiB
MCei3rr5xGTSMxHlLJCBn1d3kwk1oJiZdOXpQNlcjnfwgzIbdrb6A5gbmPatDZps4PCLzCp3AAAA
AElFTkSuQmCC
)
为根的一元二次方程是( )
A.x
2-
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADGSURBVDhPvVPRDcUgCGQydmIdl2EUR6EiqOjj
PX+a16RpQq53J3eCXB54D1ALCgDYi0WqU7sEC4VhlDUAkxDnbhqgSkGnBpITt52CSYEoZRhopB/H
7GaDXrKH3XAO+MXAdHqoRXAsqH3P476YxbdU7xIzwWB0zJT1zvBeozrTXNra5vRgldvXvEy2RkFS
FgdYo4gUZM2KeYD2Uf8mtrKdUtAHW6NbYQJLAjBJ9GJOidVm9+SDVfvhTD2lN2uGtd+Nv4eVZP8A
nWnStdqa83oAAAAASUVORK5CYII=
)
x+1=0
B.x
2-
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADGSURBVDhPvVPRDcUgCGQydmIdl2EUR6EiqOjj
PX+a16RpQq53J3eCXB54D1ALCgDYi0WqU7sEC4VhlDUAkxDnbhqgSkGnBpITt52CSYEoZRhopB/H
7GaDXrKH3XAO+MXAdHqoRXAsqH3P476YxbdU7xIzwWB0zJT1zvBeozrTXNra5vRgldvXvEy2RkFS
FgdYo4gUZM2KeYD2Uf8mtrKdUtAHW6NbYQJLAjBJ9GJOidVm9+SDVfvhTD2lN2uGtd+Nv4eVZP8A
nWnStdqa83oAAAAASUVORK5CYII=
)
x-1=0
C.x
2+
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADGSURBVDhPvVPRDcUgCGQydmIdl2EUR6EiqOjj
PX+a16RpQq53J3eCXB54D1ALCgDYi0WqU7sEC4VhlDUAkxDnbhqgSkGnBpITt52CSYEoZRhopB/H
7GaDXrKH3XAO+MXAdHqoRXAsqH3P476YxbdU7xIzwWB0zJT1zvBeozrTXNra5vRgldvXvEy2RkFS
FgdYo4gUZM2KeYD2Uf8mtrKdUtAHW6NbYQJLAjBJ9GJOidVm9+SDVfvhTD2lN2uGtd+Nv4eVZP8A
nWnStdqa83oAAAAASUVORK5CYII=
)
x+1=0
D.x
2+
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAADGSURBVDhPvVPRDcUgCGQydmIdl2EUR6EiqOjj
PX+a16RpQq53J3eCXB54D1ALCgDYi0WqU7sEC4VhlDUAkxDnbhqgSkGnBpITt52CSYEoZRhopB/H
7GaDXrKH3XAO+MXAdHqoRXAsqH3P476YxbdU7xIzwWB0zJT1zvBeozrTXNra5vRgldvXvEy2RkFS
FgdYo4gUZM2KeYD2Uf8mtrKdUtAHW6NbYQJLAjBJ9GJOidVm9+SDVfvhTD2lN2uGtd+Nv4eVZP8A
nWnStdqa83oAAAAASUVORK5CYII=
)
x-1=0
相关试题
-
以
、-
为根的一元二次方程是( )
A.x2-
x+1=0
B.x2-
x-1=0
C.x2+
x+1=0
D.x2+
x-1=0
-
以
、-
为根的一元二次方程是( )
A.x2-
x+1=0
B.x2-
x-1=0
C.x2+
x+1=0
D.x2+
x-1=0
-
下列一元二次方程中,两根之和为2的是( )
A.x2-x+2=0
B.x2-2x+2=0
C.x2-x-2=0
D.2x2-4x+1=0
-
下列一元二次方程中,两根之和为2的是( )
A.x2-x+2=0
B.x2-2x+2=0
C.x2-x-2=0
D.2x2-4x+1=0
-
以1,-2为两根的一元二次方程是( )
A.x2+x-2=0
B.x2-x+2=0
C.x2-x-2=0
D.x2+x+2=0
-
以-3和2为根的一元二次方程是( )
A.x2-x-6=0
B.x2+x-6=0
C.x2-x+6=0
D.x2+x+6=0
-
下列关于x的一元二次方程有实数根的是( )
A.x2+1=0
B.x2+x+1=0
C.x2-x+1=0
D.x2-x-1=0
-
下列一元二次方程中,只有方程( )的根为1与-2.
A.x2-x-2=0
B.x2+x-2=0
C.x2-x+2=0
D.x2+x+2=0
-
下面方程中,有两个不等实数根的方程是( )
A.x2+x-1=0
B.x2-x+1=0
C.x2-x+
=0
D.x2+1=0
-
下面方程中,有两个不等实数根的方程是( )
A.x2+x-1=0
B.x2-x+1=0
C.x2-x+
=0
D.x2+1=0