Question

x=(1/3)+[3^-1 - (-3) -1]^-2
como faz isso? me ajudem pf

Answer 1

x = (1/3) + [(1/3) - (-1/3)]^-2
x= (1/3) + [2/3]^-2
x= (1/3) + (3/2)²
x= 1/3 + 9/4     mmc(3,4) = 12
x= 4/12 + 27/12
x= 31/12