#1401 · Algebra · Sequences & series

Sum of sixth powers with a variable

Find the value of $(2 - 1 - x)^{6} + (2 + 1 - x)^{6}$ .

~7 minAnswer checked instantlybinomial theorempolynomial expansion

H. S. Hall & S. R. Knight, Higher Algebra (1891) · Ch. XIII. Binomial Theorem: Positive Integral Index, Examples XIII.a, No. 24

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