PrincessJly
PrincessJly PrincessJly
  • 16-04-2018
  • Mathematics
contestada

How would I solve this rational equation
[tex] \frac{4}{x} = \frac{1}{ {x }^{2} + 4x} + \frac{5}{x} [/tex]

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Serpentiel
Serpentiel Serpentiel
  • 18-04-2018
[tex]\frac{4}{x}=\frac{1}{x^2+4x}+\frac{5}{x}, x \neq 0, x \neq -4. \newline \frac{4}{x}-\frac{1}{x^2+4x}-\frac{5}{x}=0. \newline \frac{4}[x}-\frac{1}{x(x+4)}-\frac{5}{x}=0. \newline \frac{4(x+4)-1-5(x+4)}{x(x+4)}=0. \newline \frac{-x-5}{x(x+4)}=0. \newline -x-5=0. \newline -x = 5. \newline x = -5.[/tex]
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