Find the coefficient of the term x 4 when the expression (3x + 5)7 is expanded by the binomial theorem.
Added by Jaime R.
Step 1
Step 1: Use the formula for finding the coefficient of a specific term in a binomial expansion: coefficient = nCr * (a)^(n-r) * (b)^r, where n is the power of the binomial, r is the power of the term you are looking for, a and b are the coefficients of the terms in Show more…
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