因式分解:x^(2n+1)-xy^(2n)

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因式分解:x^(2n+1)-xy^(2n)
因式分解:x^(2n+1)-xy^(2n)

因式分解:x^(2n+1)-xy^(2n)
x^(2n+1)-xy^(2n)
=x(x^2n-y^2n)
=x【(x^n)^2-(y^n)^2】
=x(x^n+y^n)(x^n-y^n)

x^(2n+1)-xy^(2n)
=x(x^2n-y^2n)
=x(x^n-y^n)(x^n+y^n)
当n=1时,原式=x(x-y)(x+y)
当n=2时,原式=x(x-y)(x+y)(x²+y²)
当n≥3时,原式=x(x-y)(x+y)[x^(n-1)+x^(n-2)y+x^(n-3)y²+...+y^(n-1)][x^(n-1)-x^(n-2)y+x^(n-3)y²-...y^(n-1)]