03-05-2014
Mathematics

contestada

which expression is equivalent to x^4-y^4?

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Аноним Аноним

03-05-2014

[tex]x^4-y^4=(x^2)^2-(y^2)^2=(x^2-y^2)(x^2+y^2)\\\\=(x-y)(x+y)(x^2+y^2)\\\\\\\\a^2-b^2=(a-b)(a+b)[/tex]

Answer Link

kate200468 kate200468

03-05-2014

[tex]x^4-y^4=(x^2)^2-(y^2)^2=(x^2-y^2)(x^2+y^2)=(x-y)(x+y)(x^2+y^2)[/tex]

Answer Link

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