(2xa la 2 - 1 )a la 7?
(2xa la 2 - 1 )a la 7.
(2xa la 2 - 1 )a la 7.
En resumen
Lo entiendo asi : <img src="https://tex.z-dn.net/?f=%282x%5E%7B2-1%7D%20%29%20%5E%7B7%7D%20" /> <img src="https://tex.z-dn.net/?f=%282x%5E%7B1%7D%20%29%20%5E%7B7%7D%20" /> <img src="https://tex.z-dn.net/?f=%282x%29%20%5E%7B7%7D%20" /> <img src="https://tex.z-dn.net/?
Lo entiendo asi :
<img src="https://tex.z-dn.net/?f=%282x%5E%7B2-1%7D%20%29%20%5E%7B7%7D%20" />
<img src="https://tex.z-dn.net/?f=%282x%5E%7B1%7D%20%29%20%5E%7B7%7D%20" />
<img src="https://tex.z-dn.net/?f=%282x%29%20%5E%7B7%7D%20" />
<img src="https://tex.z-dn.net/?f=2%5E%7B7%7Dx%20%5E%7B7%7D%20" />
<img src="https://tex.z-dn.net/?f=128x%20%5E%7B7%7D%20" />.