a+3b |
a+b |
a-b |
a+b |
2xy2+1 |
(x-y)2 |
1+2x2y |
(y-x)2 |
a+3b |
a+b |
a-b |
a+b |
a+3b+a-b |
a+b |
2(a+b) |
a+b |
2xy2+1 |
(x-y)2 |
1+2x2y |
(y-x)2 |
2xy2+1-1-2x2y |
(x-y)2 |
2xy(y-x) |
(x-y)2 |
2xy |
y-x |
1 |
R |
1 |
R1 |
1 |
R2 |
3x-2 |
x+1 |
m |
x+1 |
a |
a-1 |
a-1 |
a-2 |
a |
a-1 |
a-1 |
a-2 |
4 |
x2-4 |
1 |
x+2 |
1 |
2-x |
A.A=B | B.A×B=1 | C.A+B=0 | D.A-B=2 |
1 |
1+x |
1 |
1-x |
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