Question

calcule 2c/ x+1 + c/ x- 1

Answer 1

2c/(x + 1) + c/(x – 1)

2c . (x – 1)/(x + 1) . (x – 1) + c . (x + 1)/(x + 1) . (x – 1)

2c . (x – 1) + c . (x + 1)/ (x + 1) . (x – 1)

c . [2 . (x – 1) + (x + 1)]/x*2 – 1

c . (2x – 2 + x + 1)/x*2 – 1

c . (3x – 1)/x*2 – 1

 

Resposta: c . (3x – 1)/x*2 – 1.

Bons estudos!