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下列方程没有实数根的是A.x2-x-1=0B.x2-6x+5=0C.D.2x2+x+1=0
试题详情
下列方程没有实数根的是( )
A.x
2-x-1=0
B.x
2-6x+5=0
C.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAAZCAYAAABXTfKEAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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69gR+zVAP20ULll1g4hbmxS4wP5+vfAm6sbXZx4kG+YOfgPstUtgf2d+K/SjDbdhUA+4/gHq8bEZ
Q4hFvgAAAABJRU5ErkJggg==
)
D.2x
2+x+1=0
相关试题
-
下列方程中,没有实数根的是( )
A.x2-2x+1=0
B.x2-
x+1=0
C.-2x2+x+2=0
D.x2-6x+9=0
-
下列方程没有实数根的是( )
A.x2-x-1=0
B.x2-6x+5=0
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAAZCAYAAABXTfKEAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAJRSURBVGhD7VhLkoQgDOVcLjyOe27i2oO45SC9
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Q4hFvgAAAABJRU5ErkJggg==
)
D.2x2+x+1=0
-
下列方程没有实数根的是( )
A.x2-x-1=0
B.x2-6x+5=0
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAAZCAYAAABXTfKEAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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Q4hFvgAAAABJRU5ErkJggg==
)
D.2x2+x+1=0
-
下列方程没有实数根的是( )
A.x2-x-1=0
B.x2-6x+5=0
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAAZCAYAAABXTfKEAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAJRSURBVGhD7VhLkoQgDOVcLjyOe27i2oO45SC9
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Q4hFvgAAAABJRU5ErkJggg==
)
D.2x2+x+1=0
-
下列方程没有实数根的是( )
A.x2-x-1=0
B.x2-6x+5=0
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAAZCAYAAABXTfKEAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAJRSURBVGhD7VhLkoQgDOVcLjyOe27i2oO45SC9
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nv7fW0CZj9wtkWKnMD9yd1Wq+STwJTh+Umo0zlD1dIFjo+bt3RIldgr4EGHtu6u07KhhAK4NvMZQ
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Jof5o9/j4J/N6nB92E3GTsoptJ+RIj7vYKMmJGoXqGN6qFl5PWLfNeWL/OgTsLPfA99dzpwZ/7D5
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Q4hFvgAAAABJRU5ErkJggg==
)
D.2x2+x+1=0
-
下列方程没有实数根的是( )
A.x2-x-1=0
B.x2-6x+5=0
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAAZCAYAAABXTfKEAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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Q4hFvgAAAABJRU5ErkJggg==
)
D.2x2+x+1=0
-
下列方程没有实数根的是( )
A.x2-x-1=0
B.x2-6x+5=0
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAAZCAYAAABXTfKEAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAJRSURBVGhD7VhLkoQgDOVcLjyOe27i2oO45SC9
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Q4hFvgAAAABJRU5ErkJggg==
)
D.2x2+x+1=0
-
下列方程没有实数根的是( )
A.x2-x-1=0
B.x2-6x+5=0
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAAZCAYAAABXTfKEAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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Q4hFvgAAAABJRU5ErkJggg==
)
D.2x2+x+1=0
-
下列方程没有实数根的是( )
A.x2-x-1=0
B.x2-6x+5=0
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAAZCAYAAABXTfKEAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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Q4hFvgAAAABJRU5ErkJggg==
)
D.2x2+x+1=0
-
下列方程没有实数根的是( )
A.x2-x-1=0
B.x2-6x+5=0
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAAZCAYAAABXTfKEAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAJRSURBVGhD7VhLkoQgDOVcLjyOe27i2oO45SC9
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Q4hFvgAAAABJRU5ErkJggg==
)
D.2x2+x+1=0