Question

resolva as equaçoes exponenciais​

Answer 1

Explicação passo-a-passo:

.

$2 {}^{x} = 32$

$2 {}^{x} = 2 {}^{5}$

$x = 5$

.

$3 {}^{8x + 2} = 27$

$3 {}^{8x + 2} = 3 {}^{3}$

$8x + 2 = 3$

$8x = 3 - 2$

$8x = 1$

$x = \dfrac{1}{8}$

.

$5 {}^{ \frac{x}{2} } = 625$

$5 {}^{ \frac{x}{2} } = 5 {}^{4}$

$\dfrac{x}{2} = 4$

$x = 2 \times 4$

$x = 8$