7 |
x2+x |
1 |
x2-1 |
2 |
x2-x |
x+2 |
x-2 |
x+3 |
x-3 |
3 |
2 |
3 |
2 |
x |
2+x |
3 |
2-x |
8 |
4-x2 |
A.2x-x2-6-3x=4-x2+8 | B.x2-2x+6+3x=4-x2+8 |
C.2x-x2+6+3x=4-x2+8 | D.x2+2x-3x=1-8 |
4ax+5 |
a+2x |
x2-1 |
x2+x+1 |
5 |
x |
7 |
x-2 |
x-m |
x-5 |
-1 |
x-5 |
A.m=6 | B.m=5 | C.m=3 | D.m=1 |
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