Find the numerical coefficient of the term involving $x^3 y^2$ in the expansion $(4x + 2y - 3z)^5$.
Added by Joaquin B.
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This term will come from choosing x^2y three times and -3z two times from the binomial (4x^2y -3z). The binomial theorem tells us that the coefficient of this term will be the combination of 5 choose 3 times the product of the coefficients of x^2y and -3z. Show more…
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