Question

por fato me ajude

Resolva as esquaçoes exponenciais:
a)3.5x-1 = 75

b)10.2x-3=10

Answer 1

$3*5^{x-1}=75 *5^{x-1}=75/3 *5^{x-1}=25 *5^{x-1}=5² x-1=2 x=1+2 x=3$

$10*2^{x-3}=10 2^{x-3}=10/10 2^{x-3}=1 2^{x-3}= 2^{0} x-3=0 x=3$