Question

Resolva as equações:

h) 4^x = 0,125

Answer 1

${4}^{x} = 0.125 \\ {( {2}^{2} )}^{x} = \frac{1}{8} \\ {2}^{2x} = \frac{1}{ {2}^{3} } \\ {2}^{2x} = {2}^{ - 3} \\ 2x = - 3 \\ x = - \frac{ 3}{2}$