Question

Calcule a raiz f (x) = 1/ 2 x + 1

Answer 1

f (x) = (1/ 2)x + 1
0 = (1/ 2)x + 1
(1/ 2)x=-1
x/2=-1
x=-2

Answer 2

$\frac{1}{2}x+1=0$⇒ x=$\frac{2}{1}$·1=2
x=0⇒porque igualou por 0
x=2