Question

como resolve:
1/3 elevado a 10 x 1/3 elevado a 10 : 1/3 elevado a 20

Answer 1

x=(-1/3)³ +[3⁻¹]² ,3⁻¹ = 1/3
x=₋1³/3³ +[1/3+1/3]²
x=₋ 1/27 +(2/3)²
x=₋1/27 +(2²/ 3²)
x=1/27 +4/9 
mmc (9,27)=27
x=₋1+12/27 
∴x =11/27