1/ 2.x2012 = x2014
<=> 2.x2012 - x2014 = 0
<=> x2012 . ( 2 - 1) = 0
<=> x2012 . 1 = 0
<=> x2012 = 0
<=> x = 0
Vậy x = 0
2/ 2x-1 .8 + 2x - 1 .3 = 44
<=> 2x-1 . ( 8 + 3 ) = 44
<=> 2x-1 . 11 = 44
<=> 2x-1 = 44 : 11
<=> 2x-1 = 4
<=> 2x-1 = 22
<=> x - 1 = 2
<=> x = 3
Vậy x = 3
3/ 22 . 3x = 108
<=> 4 . 3x = 108
<=> 3x = 108 : 4
<=> 3x = 27
<=> 3x = 33
<=> x = 3
Vậy x = 3
~ Hok tốt ~