Question

Ma puteti ajuta va rog la problema atasata?
35 puncte

Answer 1

Explicație pas cu pas:

(3x+2)/(x+1)

(3x+3-1)/(x+1)

(3x+3)/(x+1)-1/(x+1)

3(x+1)/(x+1)-1/(x+1)

3-1/(x+1)

3∈Z

D{1}={-1,1}

x+1=-1

x=-2

x+1=1⇒x=0

Raspuns:A={-2,0}

Bafta!