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5. Si : a + b = 5ab = 7Halla [tex]a ^ {3} + b ^ {3}[ / tex]Doy 60 puntos?

5. Si : a + b = 5 ab = 7 Halla [tex]a ^ {3} + b ^ {3}[ / tex] Doy 60 puntos.

En resumen

Si : a + b = 5 ab = 7 Halla : a3 + b3<img src="https://tex.z-dn.net/?f=Elevar%20%3A%20Al%20%5C%20cubo" /><img src="https://tex.z-dn.net/?f=%5Cleft%28a%2Bb%5Cright%29%5E3%3D%5Cleft%285%5Cright%29%5E3" /><img src="https://tex.z-dn.net/?

Mejor respuesta

Daniyjerry
1

Si : a + b = 5 ab = 7 Halla : a3 + b3<img src="https://tex.z-dn.net/?f=Elevar%20%3A%20Al%20%5C%20cubo" /><img src="https://tex.z-dn.net/?f=%5Cleft%28a%2Bb%5Cright%29%5E3%3D%5Cleft%285%5Cright%29%5E3" /><img src="https://tex.z-dn.net/?f=a%5E3%2B3a%5E2b%2B3ab%5E2%2Bb%5E3%3D125" /><img src="https://tex.z-dn.net/?f=a%5E3%2Bb%5E3%2B3aab%2B3abb%3D125" /><img src="https://tex.z-dn.net/?f=a%5E3%2Bb%5E3%2B3ab%5Cleft%28a%2Bb%5Cright%29%3D125" /><img src="https://tex.z-dn.net/?f=Remplazar%5C%20los%20%5C%20datos" /><img src="https://tex.z-dn.net/?f=a%5E3%2Bb%5E3%2B3%287%29%5Cleft%285%29%3D125" /><img src="https://tex.z-dn.net/?f=a%5E3%2Bb%5E3%2B105%3D125" /><img src="https://tex.z-dn.net/?f=a%5E3%2Bb%5E3%3D125-105" /><img src="https://tex.z-dn.net/?f=a%5E3%2Bb%5E3%3D20" />.