REDUCE : A = [tex] \ frac{ab + b²}{ab} + \ frac{ab - b²}{ab - a²}[ / tex] El Ä mayuscula no representa nada es un error del " ² ".
En resumen
Respuesta : 1Explicación : <img src="https://tex.z-dn.net/?f=A%3D%5Cfrac%7Bab%2Bb%5E%7B2%7D%7D%7Bab%7D%2B%5Cfrac%7Bab-b%5E%7B2%7D%7D%7Bab-a%5E%7B2%7D%7D" /><img src="https://tex.z-dn.net/?
Respuesta : 1Explicación : <img src="https://tex.z-dn.net/?f=A%3D%5Cfrac%7Bab%2Bb%5E%7B2%7D%7D%7Bab%7D%2B%5Cfrac%7Bab-b%5E%7B2%7D%7D%7Bab-a%5E%7B2%7D%7D" /><img src="https://tex.z-dn.net/?f=A%3D%5Cfrac%7B%28ab%2Bb%5E%7B2%7D%29%28ab-a%5E%7B2%7D%29%2B%28ab-b%5E%7B2%7D%29%28ab%29%7D%7B%28ab%29%28ab-a%5E%7B2%7D%29%7D" /><img src="https://tex.z-dn.net/?f=A%3D%5Cfrac%7B%28ab%29%5E%7B2%7D-a%5E%7B3%7Db%2Bab%5E%7B3%7D-%28ab%29%5E%7B2%7D%2B%28ab%29%5E%7B2%7D-ab%5E%7B3%7D%7D%7B%28ab%29%5E%7B2%7D-a%5E%7B3%7Db%7D" /><img src="https://tex.z-dn.net/?f=A%3D%5Cfrac%7B-a%5E%7B3%7Db%2B%28ab%29%5E%7B2%7D%7D%7B%28ab%29%5E%7B2%7D-a%5E%7B3%7Db%7D" /><img src="https://tex.z-dn.net/?f=A%3D%5Cfrac%7B%28ab%29%5E%7B2%7D-a%5E%7B3%7Db%7D%7B%28ab%29%5E%7B2%7D-a%5E%7B3%7Db%7D" /><img src="https://tex.z-dn.net/?f=A%3D1" />.