Find a if the coefficients of x2 and x3 in the expansion of (3+ax)9 are equal - Maths - Binomial Theorem

Question

Find a if the coefficients of x2
and x3 in the expansion of (3+ax)9 are
equal

Ankush Jain · Accepted Answer

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Find a if the coefficients of x2 and x3 in the expansion of (3+ax)9 are equal.