Question

f(x)=x-1 aici e supra nu am putut pune linuta
x=+3

Answer 1

F(x)= $\frac{x+3-4}{x+3}$ = $\frac{x+3}{x+3}$ - $\frac{4}{x+3}$
D4={±1;±2±4}
x+3=1 ⇒ x= -2
x+3= -1 ⇒ x= -4
x+3=2 ⇒ x= -1
x+3= -2 ⇒ x= -5
x+3=4 ⇒ x= 1
x+3= -4 ⇒ x= -7
Sper ca e bine..