| -2 |
| 3x |
| 2 |
| 3x |
| 2 |
| 3x |
| -2 |
| -ab |
| 2 |
| ab |
| 2 |
| ab |
| -5-y |
| -x |
| 5+y |
| x |
| 5+y |
| x |
| 0.1x+0.5y |
| 0.05x-0.05y |
| 2x+10y |
| x-y |
| 2x+10y |
| x-y |
| sy |
| a |
| () |
| aby |
| 6s(y+z) |
| 6(y+z)2 |
| () |
| y+z |
| 1 |
| s |
| 1 |
| y |
| x+2 |
| x-1 |
| x2+3x+2 |
| x2-1 |
| v-2s |
| 2s-u |
| v-s |
| s |
| uv |
| u+v |
| uv |
| u+v |
| x |
| 2x+1 |
| x(x+5) |
| (2x+1)(x+5) |
0.4a-
| ||
|
| 4a-5b |
| 2a+3b |
| 4a-5b |
| 2a+3b |
| x |
| 3 |
| y |
| 4 |
| z |
| 2 |
| x-2y+3z |
| x-3y-z |
| 1 |
| 11 |
| 1 |
| 11 |
| 1 |
| 5a |
| x-1 |
| 5a(x-1) |
| gq |
| qa |
| gq×(&5gs如;&5gs如;&5gs如;&5gs如;) |
| qa×(&5gs如;&5gs如;&5gs如;&5gs如;) |
| qag3 |
| 4aqg |
| 6a3g |
| 3agq |
| 6a3g÷(&5gs如;&5gs如;&5gs如;&5gs如;) |
| 3agq÷(&5gs如;&5gs如;&5gs如;&5gs如;) |
| qaq |
| g |