Question

resolva as seguinte equacoes exponenciais com incognita x
a - 2 elevado a x =64
b - 3 elevado a x-2 = 9
 

Answer 1

$a)2 ^{x}=64$

$2 ^{x}= 2 ^{6}$

$x=6$



$b)3 ^{x-2}=9$

$3 ^{x-2}=3 ^{2}$

$x-2=2$

$x=2+2$

$x=4$