Binomial Expansion
100

Find the last term for the expansion (7-x)7

-X7

200

Find the third term for the expansion (2x+3y)5

720x3y2


300

Find the middle term for the expansion (D-C)6

-20d3c3

500

Find the middle term for the expansion (3r-5d)4

1350r2d2

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