x2 |
x+y |
3x-y |
4 |
x3 |
x+y |
y3 |
y+z |
z3 |
z+x |
xy+yz+zx |
2 |
x2 |
x+y |
3x-y |
4 |
(x-y)2 |
4(x+y) |
x2 |
x+y |
3x-y |
4 |
x3 |
x+y |
3x2-xy |
4 |
y3 |
y+z |
3y2-yz |
4 |
z3 |
z+x |
3z2-zx |
4 |
1 |
2 |
x3 |
x+y |
y3 |
y+z |
z3 |
z+x |
3x2-xy+3y2-yz+3z2-zx |
4 |
3(x2+y2+z2)-xy-yz-zx |
4 |
3(xy+yz+zx)-xy-yz-zx |
4 |
xy+yz+zx |
2 |
2 |
2 |
3 |
an+1 |
an+4 |
an+2 |
an+3 |
1 |
4x |
1 |
4y |
1 |
x+y |
1 |
4 |
1 |
9 |
1 |
4 |
1 |
9 |
(a+b+c)2 |
14 |
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