Question

10* 2 elevado a x-4 sendo que o x e na 2 = 320

Answer 1

$10.2^{x^2-4} = 320$
$2^{ x^2 -4} = \frac{32\not0}{1\not0}$
$2^{ x^2 -4} = 32$
$\not2^{ x^2 -4} = \not2^5$
$x^2 -4 = 5$
$x^2 = 9$
$x = \sqrt{9}$
$\large\boxed{ x = \pm ~3}$