| ||||
8-2x |
|
-9 |
8-2×(-4) |
9 |
16 |
9 |
16 |
9 |
4 |
3 |
2 |
8 |
3 |
2 |
3 |
2 |
3 |
x-1 |
x+1 |
x2 |
x-1 |
3 |
x+1 |
2x |
x2+1 |
x-1 |
x+1 |
(x+1)-2 |
x+1 |
2 |
x+1 |
x2 |
x-1 |
x2-1+1 |
x-1 |
(x+1)(x-1)+1 |
x-1 |
1 |
x-1 |
x-1 |
x+2 |
2x-1 |
x+1 |
2x2-1 |
x+1 |
x2-25 |
x-5 |
x | ||
1-
|
1 |
x-3 |
A.x≠3 | B.x≠0 | C.x>3 | D.x=3 |
1 |
x |
A.x=0 | B.x≠0 | C.x>0 | D.x<0 |
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