( 12x - 5 ) ( 4x -1 ) + ( 3x - 7 ) ( 1 - 16x ) = 81
48x2 - 12x - 20x + 5 + 3x - 48x2 - 7 + 112x = 81
83x = 81 - 5 + 7
83x = 83
x = 83/83
x = 1
Chúc bn hok tốt nha
Các câu hỏi tương tự
(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