A.x1=0,x2=1 | B.x1=0,x2=-1 | C.x1=1,x2=2 | D.x1=-1,x2=2 |
A.(2x-2)(3x-4)=0,∴2-2x=0或3x-4=0 |
B.(x+3)(x-1)=1,∴x+3=0或x-1=1 |
C.(x-2)(x-3)=2×3,∴x-2=2或x-3=3 |
D.x(x+2)=0,∴x+2=0 |
A.x1=b,x2=a | B.x1=b,x2=
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C.x1=a,x2=
| D.x1=a2,x2=b2 |
A.x1、2=
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B.x1、2=
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C.x1、2=
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D.x1、2=
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A.x=
| B.x=
| C.x=
| D.x=
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