Question

Quanto é x = (2^0 + 2^-1) : (2^0 - 2^ -1)

Answer 1

X = (2⁰ + 2 ⁻¹)  :  (2⁰  - 2⁻¹) 
X = ( 1 + 1/2) : ( 1 - 1/2 )
X =   3/2 :  1/2 
X = 3/2 X 2/1
X = 6/2
X = 3

Answer 2

x = (2^0 + 2^-1) / (2^0 - 2^-1)
x = (1 + 1/2) / (1 - 1/2)
x = 3/2 / - 1/2
x = 6/-2
x = -3