Question

Calcule as expressões.
a)2⁵- 3² .2
b)13° -3.2³
c)3⁻¹ - $\frac{1}{3}$²
d) (2⁻² -4⁻²) . (2⁻⁴ +4⁻¹)

Answer 1

Oi Arabella

a) 2^5 - 3^2*2 = 32 - 18 = 14 

b) 13° - 3*2^3 = 1 - 24 = -23

c) 3^-1 - (1/3)^2 = 1/3 - 1/9 = 3/9 - 1/9 = 2/9 

d) (2^-2 - 4^-2)*(2^-4 + 4^-1) =

(1/4 - 1/16)*(1/4 + 1/16) = 1/16 - 1/256 = 15/256