Question

Calcule o valor de X.

Answer 1

A)

2 ^x = 1/16

2^x = 1/2^4

2^x = 2^-4

x = -4

B) √27 = √3³, ou seja 3³/² = 3^2x > 2x = 3/2 ; x = 3/4

Answer 2

a) $2^{x} = 2^{-4}$, logo x = -4

b) $(3^{2x})^{2} = 3^{3}$

$3^{4x} = 3^{3}$

4x = 3

x = $\frac{3}{4}$