Question

Qual o valor de x?
a)
${3}^{x} = 81$
b)
$( \frac{1}{2} ) {}^{x} = ( \frac{1}{32} )$
c)
$(0.5) {}^{x} = ( \frac{25}{100} )$
d)
$( - 3) {}^{x} = - 243$
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Answer 1

Espero que entenda

Bons estudos