Question

cómo simplificar la expresión f(x)= 1/x-3+2/x+3/2x/x²-3x+9​

Answer 1

Respuesta:

f(x) (1)/(x-3)+(2)/(x+3)+(2x)/(x^(2)-3x+9)

=(x+3)+(2⋅(x−3))(x−3)⋅(x+3)+2xx2−3x+9=

=3x−3x2−9+2xx2−3x+9=

=((3x−3)⋅(x2−3x+9))+(2x⋅(x2−9))(x2−9)⋅(x2−3x+9)=

=5x3−12x2+18x−27x4−3x3+27x−81