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(2003•舟山)若x1,x2是一元二次方程3x2+x-1=0的两个根,则的值是A.-1B...
试题详情
(2003•舟山)若x
1,x
2是一元二次方程3x
2+x-1=0的两个根,则
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACIAAAAqCAYAAADWFImvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFZSURBVFhH7ViJDcMgDGQydmIdlmEURnHNVwgk
gBNLoRWRokgtvVzP5zOJgEUOsQgPWJyI1SCFBG0Z9RpgtooYBUIIPBmJTGBelMaA4iTihe1jbiK1
+7YiWxF61/jgcTkSTmUYQm0Cc/GIZxCBCrEVado3mXL22kiOA6029CxWWucwn5fmhAjVH79PxKic
M20ZFA58+rFLMzn0CNL+nVmtln64ybhl90aUGp5s4O9gBrO66Yg3N0iKZdrewIxdY0HLrArBIZ2l
NMxv+7qSsKkR6VEwIxGDiqBXWJnQMD0RozANo08sXnURje5fJSNTSnaOGcoV0viYwPhZKklcVHRM
7f5ZIleYVqvv83TdncOId2TuKDIk7fexWZX3iPhn4RWIoCKqeO/xmiJGH9P7FSLOd832cmQqbrMe
8TBrYnm6iqT2LYfiiHjv+3Znl99KDUvz5MaU324itVofe03mqIhonvgAAAAASUVORK5CYII=
)
的值是( )
A.-1
B.0
C.1
D.2
相关试题
-
(2003•舟山)若x1,x2是一元二次方程3x2+x-1=0的两个根,则
的值是( )
A.-1
B.0
C.1
D.2
-
(2003•舟山)若x1,x2是一元二次方程3x2+x-1=0的两个根,则
的值是( )
A.-1
B.0
C.1
D.2
-
(2003•舟山)若x1,x2是一元二次方程3x2+x-1=0的两个根,则
的值是( )
A.-1
B.0
C.1
D.2
-
(2003•舟山)若x1,x2是一元二次方程3x2+x-1=0的两个根,则
的值是( )
A.-1
B.0
C.1
D.2
-
(2003•成都)一元二次方程2x2+3x-4=0的根的情况是( )
A.有两个相等的实数根
B.有两个不相等的实数根
C.无实数根
D.不能确定
-
(2003•南京)如果一元二次方程3x2-2x=0的两个根是x1和x2,那么x1•x2等于( )
A.2
B.0
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC/SURBVDhPvVPBDYQwDMtk2SnrdJmMklEMobQk
7ak96dAh8SiY2LENYXPRSwAVEFG9ucDCWIIVsOj9SCEO6meATDV9YYXTlFmk08UJ4xYqhPAeeULS
Uz8NAENhQZPbJneACqPE/W7EBXDlkRen0HYmF9VNambRQ/VWFotI9xSzwEf0YNRnnj3Fd5XzkJpJ
ydIrrLNFvWa1UTlus9SodR+GNqU1e2izhrDHLZZDMSYffm2193JcM/52gwd/DWsR6QE4xeDwtHXW
SwAAAABJRU5ErkJggg==
)
D.-
-
(2003•南京)如果一元二次方程3x2-2x=0的两个根是x1和x2,那么x1•x2等于( )
A.2
B.0
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC/SURBVDhPvVPBDYQwDMtk2SnrdJmMklEMobQk
7ak96dAh8SiY2LENYXPRSwAVEFG9ucDCWIIVsOj9SCEO6meATDV9YYXTlFmk08UJ4xYqhPAeeULS
Uz8NAENhQZPbJneACqPE/W7EBXDlkRen0HYmF9VNambRQ/VWFotI9xSzwEf0YNRnnj3Fd5XzkJpJ
ydIrrLNFvWa1UTlus9SodR+GNqU1e2izhrDHLZZDMSYffm2193JcM/52gwd/DWsR6QE4xeDwtHXW
SwAAAABJRU5ErkJggg==
)
D.-
-
(2003•甘肃)方程3x2+4x=0( )
A.只有一个根x2=-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACySURBVDhPtZLdDYAwCISZjJ1Yh2UYhVGwtLb2
h6Y+KMbENPTuhA/sUPB1gxojGMmjO1goowHsGpSNWHYKSZrYND2hhRAaq/tGDUJdqKBBCHKw+cUi
adOgDr8ZZxhmfVRYN/P5sgKLaAb1LJjDfyETC1j30eNUdiFG6Cx4pe+FKHVMnvLtbpm0xAasFuV2
42LXkLvusBWWcFAZ/RZ6ISp7DTleIOc3OminjDO0/y1rVW4nF4pt3heVopGcAAAAAElFTkSuQmCC
)
B.只有一个根x2=0
C.有两个根x1=0,x=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACySURBVDhPtZLdDYAwCISZjJ1Yh2UYhVGwtLb2
h6Y+KMbENPTuhA/sUPB1gxojGMmjO1goowHsGpSNWHYKSZrYND2hhRAaq/tGDUJdqKBBCHKw+cUi
adOgDr8ZZxhmfVRYN/P5sgKLaAb1LJjDfyETC1j30eNUdiFG6Cx4pe+FKHVMnvLtbpm0xAasFuV2
42LXkLvusBWWcFAZ/RZ6ISp7DTleIOc3OminjDO0/y1rVW4nF4pt3heVopGcAAAAAElFTkSuQmCC
)
D.有两个根x1=0,x=-
-
(2003•甘肃)方程3x2+4x=0( )
A.只有一个根x2=-![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACySURBVDhPtZLdDYAwCISZjJ1Yh2UYhVGwtLb2
h6Y+KMbENPTuhA/sUPB1gxojGMmjO1goowHsGpSNWHYKSZrYND2hhRAaq/tGDUJdqKBBCHKw+cUi
adOgDr8ZZxhmfVRYN/P5sgKLaAb1LJjDfyETC1j30eNUdiFG6Cx4pe+FKHVMnvLtbpm0xAasFuV2
42LXkLvusBWWcFAZ/RZ6ISp7DTleIOc3OminjDO0/y1rVW4nF4pt3heVopGcAAAAAElFTkSuQmCC
)
B.只有一个根x2=0
C.有两个根x1=0,x=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAACySURBVDhPtZLdDYAwCISZjJ1Yh2UYhVGwtLb2
h6Y+KMbENPTuhA/sUPB1gxojGMmjO1goowHsGpSNWHYKSZrYND2hhRAaq/tGDUJdqKBBCHKw+cUi
adOgDr8ZZxhmfVRYN/P5sgKLaAb1LJjDfyETC1j30eNUdiFG6Cx4pe+FKHVMnvLtbpm0xAasFuV2
42LXkLvusBWWcFAZ/RZ6ISp7DTleIOc3OminjDO0/y1rVW4nF4pt3heVopGcAAAAAElFTkSuQmCC
)
D.有两个根x1=0,x=-
-
(2003•舟山)解方程组
.