How do you expand ${(x - y)}^{4}$ $(x-y)^4$ ?

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Answer 1 · 2016-11-09T17:46:28

$(x - y) (x - y) (x - y) (x - y)$ $(x-y)(x-y)(x-y)(x-y)$

${(x - y)}^{2} = (x - y) (x - y)$ $(x-y)^2 = (x-y)(x-y)$

The rule applies to higher powers as well so

${(x - y)}^{3} = (x - y) (x - y) (x - y)$ $(x-y)^3 = (x-y)(x-y)(x-y)$ and

${(x - y)}^{4} = (x - y) (x - y) (x - y) (x - y)$ $(x-y)^4 = (x-y)(x-y)(x-y)(x-y)$

How do you expand (x-y)^4(x−y)4(x-y)^4?