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Al simplificar la expresion (x - y) (x ^ 2 + xy + y ^ 2) - (x + y)(x ^ 2 - xy + y ^ 2) se obtiene?

Al simplificar la expresion (x - y) (x ^ 2 + xy + y ^ 2) - (x + y)(x ^ 2 - xy + y ^ 2) se obtiene?

En resumen

<img src="https://tex.z-dn.net/?f=%28x-y%29%20%28x%5E%7B2%7D%20%2Bxy%2By%5E2%29-%28x%2By%29%28%20x%5E%7B2%7D%20-xy%2By%5E2%29%20" /> <img src="https://tex.z-dn.net/?

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<img src="https://tex.z-dn.net/?f=%20x%5E%7B3%7D%20-%20%20y%5E%7B3%7D%20-%20%28%20%20x%5E%7B3%7D%20%2B%20%20y%5E%7B3%7D%20%29" />

<img src="https://tex.z-dn.net/?f=%20x%5E%7B3%7D%20-%20%20y%5E%7B3%7D%20-%20%20x%5E%7B3%7D%20-%20%20y%5E%7B3%7D%20" />

<img src="https://tex.z-dn.net/?f=-2%20y%5E%7B3%7D%20" />.