Two equal greatest terms in binomial expansion

Find the greatest term in the expansion of $(5 - 4 x)^{- 7}$ when $x = rac{1}{2}$ .

~12 minAnswer checked instantlyBinomial theoremGreatest term

H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. XIV. Binomial Theorem: Any Index, Examples XIV.b, No. 17

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Checked against the answer in H. S. Hall & S. R. Knight, Higher Algebra (1891).