Question

因式分解：x(a-b)2n+y(b-a)2n+1

Answer 1

x(a-b)^2n+y(b-a)^2n+1

=x(a-b)^2n+y(b-a)(b-a)^2n

=x(a-b)^2n+(yb-ya)(a-b)^2n

=(x+yb-ya)(a-b)^2n

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