Question

eu n consigo respoder unas das questoes da provafetuando as operacoes quero ajuda 4/x- 5/x-2

Answer 1

4/x - 5/(x - 2) = 0

$\frac{4-5=0}{x(x-2)} = \frac{4(x-2)-5x=0}{x(x-2)}$

4x-8=5x
 4x-5x=8
 -x=8
 x=-8

Answer 2

$

Ola Livia

4/x - 5/(x - 2) = 0

(4x - 8 - 5x)/((x*x - 2)) = 0

-x - 8 = 0

x = -8

pronto