4t² - 3t - 1 = 0
sendo t = 2^x
<=> t = 1
<=> t = -1/4 ( Don't choose we know 2^x have positive number )
=> 2^x = 1
<=> x = 0
Comments
4t² - 3t - 1 = 0
<=> t = 1
<=> t = -1/4 ( Don't choose we know 2^x have positive number )
=> 2^x = 1
<=> x = 0