(x+1)4+(x-1)4 |
(x+1)4-(x-1)4 |
x4+6x2+1 |
4x3+4x |
x4+6x2+1 |
4x3+4x |
1 |
3 |
(an+1)4+(an-1)4 |
(an+1)4-(an-1)4 |
an+1+1 |
an+1-1 |
(an+1)4 |
(an-1)4 |
an+1 |
an-1 |
an+1+1 |
an+1-1 |
an+1 |
an-1 |
a1+1 |
a1-1 |
an+1 |
an-1 |
an+1 |
an-1 |
an+1 |
an-1 |
34n-1+1 |
34n-1-1 |
A.1 | B.2 | C.3 | D.4 |
x2+5x+1 |
2x+1 |
x-2 |
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