(12x-5).(4x-1)+(3x-7).(1-16x) = 81
=> 48x2-12x-20x+5+3x-48x2-7+112x = 81
=> 83x-2 = 81
=> 83x = 81+2
=> 83x = 83
=> x = 83:83
=> x = 1
(12x-5)(4x-1)+ (3x-7)(1-16x)=81
( 12x - 5 ) ( 4x - 1 ) + ( 3x - 7 ) (1 - 16x ) = 81
(12x-5)×(4x-1)+(3x-7)×(1-16x)=81
Tìm x, biết
(12x-5) (4x-1)+(3x-7) (1-16x)=81
(12x-5). (4x-1)+(3x-7). (1-16x) bằng 81
Tìm x, biết:
(12x – 5)(4x – 1) + (3x – 7)(1 – 16x) = 81
a. (12x-5)(4x-1) + (3x-7)(1-16x)=81
tìm x :
( 12x - 5 ) ( 4x - 1 ) + ( 3x - 7 ) ( 1 -16x ) =81
tim x pik
(12x-5)*(4X-1)+(3X-7)*(1-16X)=81