(3c+4d)^7

What is the 4th term
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1 Answer

The first four coefficients in the general expansion are:

1, 7, 21, 35.

These coefficients combine with the variables:

(3c)⁷, (3c)⁶(4d), (3c)⁵(4d)², (3c)⁴(4d)³

So the fourth variable component is (81)(64)c⁴d³ and the whole term is:

(35)(81)(64)c⁴d³=181440c⁴d³.

by Top Rated User (1.2m points)

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