Ejercicios sección 4.2

Resuelva los ejercicios propuestos por el método adecuado.

  1. $\hspace{0.1cm}\cfrac{2}{x(4x-1)}$

  2. $\hspace{0.1cm}\cfrac{-5x+18}{x^2+2x-63}$

  3. $\hspace{0.1cm}\cfrac{2x^2-x}{\left(x+1\right)\left(x+2\right)\left(x+3\right)}$

  4. $\hspace{0.1cm}\cfrac{10x-5}{25x^2-1}$

  5. $\hspace{0.1cm}\cfrac{5x^2-25x-28}{x^2 \left(x-7\right)}$
  1. $\hspace{0.1cm}\cfrac{-4x+6}{\left(x-2\right)^2 \left(x-1\right)^2}$

  2. $\hspace{0.1cm}\cfrac{3x-1}{x^3 \left(x-1\right)\left(x+3\right)}$

  3. $\hspace{0.1cm}\cfrac{6x^2-7x+11}{\left(x-1\right)\left(x^2+9\right)}$

  4. $\hspace{0.1cm}\cfrac{5x^3-3x^2+7x-3}{\left(x^2+1\right)^2}$

  5. $\hspace{0.1cm}\cfrac{4x^2-5x-15}{x^3-4x^2-5x}$