<img src="https://tex.z-dn.net/?f=%5Cleft%28%5Cfrac%7B%5Cleft%28%5Csqrt%5B3%5D%7Ba%5E2b%2Ba%5E2%7D%5Csqrt%7Ba-b%7D%5Cright%29%7D%7B%5Csqrt%7B%5Cleft%28a%5E2-b%5E2%5Cright%29ab%7D%7D%5Cright%29%5E3" />
Sabemos que :
<img src="https://tex.z-dn.net/?f=%5Csqrt%7Ba%7D%3Da%5E%7B%5Cfrac%7B1%7D%7B2%7D%7D" />
Por lo que :
<img src="https://tex.z-dn.net/?f=%3D%5Cleft%28%5Cleft%28%5Cleft%28a%5E2-b%5E2%5Cright%29ab%5Cright%29%5E%7B%5Cfrac%7B1%7D%7B2%7D%7D%5Cright%29%5E3" />
Aplicamos la ley de los exponentes :
<img src="https://tex.z-dn.net/?f=%3D%5Cleft%28ab%5Cleft%28a%5E2-b%5E2%5Cright%29%5Cright%29%5E%7B3%5Ccdot%20%5Cfrac%7B1%7D%7B2%7D%7D" />
Simplificamos :
<img src="https://tex.z-dn.net/?f=%3D%5Cleft%28ab%5Cleft%28a%5E2-b%5E2%5Cright%29%5Cright%29%5E%7B%5Cfrac%7B3%7D%7B2%7D%7D" />
Juntamos :
<img src="https://tex.z-dn.net/?f=%3D%5Cfrac%7B%5Cleft%28%5Csqrt%5B3%5D%7Ba%5E2%2Ba%5E2b%7D%5Csqrt%7Ba-b%7D%5Cright%29%5E3%7D%7B%5Cleft%28ab%5Cleft%28a%5E2-b%5E2%5Cright%29%5Cright%29%5E%7B%5Cfrac%7B3%7D%7B2%7D%7D%7D" />
Aplicamos la ley de los exponentes :
<img src="https://tex.z-dn.net/?f=%3D%5Cfrac%7B%5Cleft%28%5Csqrt%7Ba-b%7D%5Cright%29%5E3%5Cleft%28%5Csqrt%5B3%5D%7Ba%5E2%2Ba%5E2b%7D%5Cright%29%5E3%7D%7B%5Cleft%28ab%5Cleft%28a%5E2-b%5E2%5Cright%29%5Cright%29%5E%7B%5Cfrac%7B3%7D%7B2%7D%7D%7D" />
Aplicamos la misma ley para :
<img src="https://tex.z-dn.net/?f=%3D%5Cleft%28a%5E2b%2Ba%5E2%5Cright%29%5E%7B3%5Ccdot%20%5Cfrac%7B1%7D%7B3%7D%7D" />
Simplificamos :
<img src="https://tex.z-dn.net/?f=%3Da%5E2b%2Ba%5E2" />
Juntamos :
<img src="https://tex.z-dn.net/?f=%3D%5Cfrac%7B%5Cleft%28%5Csqrt%7Ba-b%7D%5Cright%29%5E3%5Cleft%28a%5E2%2Ba%5E2b%5Cright%29%7D%7B%5Cleft%28ab%5Cleft%28a%5E2-b%5E2%5Cright%29%5Cright%29%5E%7B%5Cfrac%7B3%7D%7B2%7D%7D%7D" />
Tomamos y aplicamos la ley de los exponentes :
[img = 10]
[img = 11]
Simplificamos :
[img = 12]
Juntamos :
[img = 13]
Factorizamos :
[img = 14]
Nos queda :
[img = 15]
Juntamos :
[img = 16]
Aplicamos la ley de los exponentes :
[img = 17]
Juntamos :
[img = 18]
Sabemos que :
[img = 19]
Finalmente :
[img = 20].