E(x) = ( x la a doua - 2 supra x la a 3) + (3 -2x supra x la a 3 ) * x

Răspuns :

······[tex] [tex]\frac{ x^{2}-2 }{ x^{3} } + \frac{3-2x}{ x^{3} }[/tex] * x ( x^{3} se simplifica cu x)[/tex]
[tex]\frac{ x^{2}-2 }{ x^{3} } + \frac{3-2x}{ x^{2} }[/tex] 
[tex]\frac{ x^{2}-2 }{ x^{3} } + \frac{3-2x}{ x^{2} } (fractia 3-2x  pe x la a doua   se amplifica cu x)[/tex]
[tex] \frac{ x^{2} -2+x *(3-2x )}{ x^{3} } [/tex]
[tex][\frac{ x^{2} -2+3x-2 x^{2} }{ x^{3} }[/tex]
[tex]\frac{ -x^{2} -2+3x }{ x^{3} }[/tex]