<=> 48x^2 - 12x - 20x + 5 + 3x - 48x^2 - 7 + 112x = 81
<=> -32x + 115x = 81 + 2
<=> 83x = 83
<=> x = 1
Đúng 0
Bình luận (0)
Các câu hỏi tương tự
tim x pik
(12x-5)*(4X-1)+(3X-7)*(1-16X)=81
(12x-5)(4x-1)+(3x-7)(1-16x)=81
tim x do ....giup minh vs
Tim x : (12x-5).(4x-1)+(3x-7).(1-16x)=81
tim x
a)4x(x-7)-4x2=56
b)12x(3x-2)-(4-6x)=0
c)4(x-5)-(5-x)2=0
a)3x*(4x^2-x+7) b)(2x-1)*(4x+5) c)(12x^7-9x^5+6x^3)3x^2
Tìm x, biết
(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).(16.x)=81
tìm x :
( 12x - 5 ) ( 4x - 1 ) + ( 3x - 7 ) ( 1 -16x ) =81