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¿Cómo vas a descomponer esta ((a^3-8)/(a^2+2a+4))^2-(a+2)^2 expresión en fracciones?

Expresión a simplificar:

Solución

Ha introducido [src]
              2           
/    3       \            
|   a  - 8   |           2
|------------|  - (a + 2) 
| 2          |            
\a  + 2*a + 4/            
(a38(a2+2a)+4)2(a+2)2\left(\frac{a^{3} - 8}{\left(a^{2} + 2 a\right) + 4}\right)^{2} - \left(a + 2\right)^{2}
((a^3 - 8)/(a^2 + 2*a + 4))^2 - (a + 2)^2
Descomposición de una fracción [src]
-8*a
8a- 8 a
-8*a
Simplificación general [src]
-8*a
8a- 8 a
-8*a
Respuesta numérica [src]
-4.0*(1 + 0.5*a)^2 + 4.0*(-1 + 0.125*a^3)^2/(1 + 0.25*a^2 + 0.5*a)^2
-4.0*(1 + 0.5*a)^2 + 4.0*(-1 + 0.125*a^3)^2/(1 + 0.25*a^2 + 0.5*a)^2
Denominador racional [src]
         2                          2
/      3\           2 /     2      \ 
\-8 + a /  - (2 + a) *\4 + a  + 2*a/ 
-------------------------------------
                         2           
           /     2      \            
           \4 + a  + 2*a/            
(a+2)2(a2+2a+4)2+(a38)2(a2+2a+4)2\frac{- \left(a + 2\right)^{2} \left(a^{2} + 2 a + 4\right)^{2} + \left(a^{3} - 8\right)^{2}}{\left(a^{2} + 2 a + 4\right)^{2}}
((-8 + a^3)^2 - (2 + a)^2*(4 + a^2 + 2*a)^2)/(4 + a^2 + 2*a)^2
Unión de expresiones racionales [src]
         2                            
/      3\           2                2
\-8 + a /  - (2 + a) *(4 + a*(2 + a)) 
--------------------------------------
                          2           
           (4 + a*(2 + a))            
(a+2)2(a(a+2)+4)2+(a38)2(a(a+2)+4)2\frac{- \left(a + 2\right)^{2} \left(a \left(a + 2\right) + 4\right)^{2} + \left(a^{3} - 8\right)^{2}}{\left(a \left(a + 2\right) + 4\right)^{2}}
((-8 + a^3)^2 - (2 + a)^2*(4 + a*(2 + a))^2)/(4 + a*(2 + a))^2
Compilar la expresión [src]
                         2  
                /      3\   
         2      \-8 + a /   
- (2 + a)  + ---------------
                           2
             /     2      \ 
             \4 + a  + 2*a/ 
(a+2)2+(a38)2(a2+2a+4)2- \left(a + 2\right)^{2} + \frac{\left(a^{3} - 8\right)^{2}}{\left(a^{2} + 2 a + 4\right)^{2}}
-(2 + a)^2 + (-8 + a^3)^2/(4 + a^2 + 2*a)^2
Abrimos la expresión [src]
                        2   
                / 3    \    
         2      \a  - 8/    
- (a + 2)  + ---------------
                           2
             / 2          \ 
             \a  + 2*a + 4/ 
(a+2)2+(a38)2((a2+2a)+4)2- \left(a + 2\right)^{2} + \frac{\left(a^{3} - 8\right)^{2}}{\left(\left(a^{2} + 2 a\right) + 4\right)^{2}}
-(a + 2)^2 + (a^3 - 8)^2/(a^2 + 2*a + 4)^2
Combinatoria [src]
-8*a
8a- 8 a
-8*a
Potencias [src]
                         2  
                /      3\   
         2      \-8 + a /   
- (2 + a)  + ---------------
                           2
             /     2      \ 
             \4 + a  + 2*a/ 
(a+2)2+(a38)2(a2+2a+4)2- \left(a + 2\right)^{2} + \frac{\left(a^{3} - 8\right)^{2}}{\left(a^{2} + 2 a + 4\right)^{2}}
-(2 + a)^2 + (-8 + a^3)^2/(4 + a^2 + 2*a)^2
Denominador común [src]
-8*a
8a- 8 a
-8*a
Parte trigonométrica [src]
                         2  
                /      3\   
         2      \-8 + a /   
- (2 + a)  + ---------------
                           2
             /     2      \ 
             \4 + a  + 2*a/ 
(a+2)2+(a38)2(a2+2a+4)2- \left(a + 2\right)^{2} + \frac{\left(a^{3} - 8\right)^{2}}{\left(a^{2} + 2 a + 4\right)^{2}}
-(2 + a)^2 + (-8 + a^3)^2/(4 + a^2 + 2*a)^2