Các câu hỏi tương tự
HL
14 tháng 11 2021 lúc 16:00
Tìm x\(\inℚ\), biết:
a) |3x + 2| + |x + 2| = 3x
b) |x(2x + 3)| = 6x
1. Tìm x\(\inℚ\), biết:
a)\(\left(x-\frac{1}{2}\right)2=0\)
b)\(\left(x-2\right)^2=1\)
c) \(\left(2x-1\right)^3=-8\)
d)\(\left(x+\frac{1}{2}\right)^2=\frac{1}{16}\)
e)\(\frac{x^7}{81}=27\)
g)\(\frac{x^8}{9}=^{729}\)
tìm x
5)
4x x 5 x 4x 3 5
6)
2
2
x 2 x 1 6
7)
2
3
(3 2) 3 .
4
x x x
8) (3x + 1). (2x- 3) – 6x.(x + 2) = 16
tìm x biết:
a)(2x+2)(2x-2)-4x(x+5)=8
b)(4x+5)(4x-5)-8x(2x-7)=11
c)(1/2x-3)(1/2x+3)-1/4x(x+5)=11/2
d)(3x+2)(3x-2)-4x(x+2-5x2=18
Tìm x biết |2x+1|+|x+8|=4x
tìm x
/2x+3/+/x+2/=4x
/2x-1/+/1-2x/=8
/2x^2+/x-5//=2x^2+5
tìm x:
a) |4 - x| + 2x = 3
b) |x - 7| + 2x + 5 = 6
c) 3x - |2x + 1| = 2
d) |x + 2| - x = 2
e) |x - 3| = 21
f) |2x + 3| - |x - 3| = 0
g) |x + 1/8| + |x + 2/8| + |x + 5/8| = 4x
h) |x - 2| - |2x + 3| - x = -2
i) |2x - 3| - x = |2 - x|
k) 2. |x - 3| - |4x -1 = 0
Tìm x:
7) | 1/4x - 3/4| = 4/ 5 x- 2/5
8) | 2x-1| =x
9) | x+ 2| = 2x
Tìm x:
1, |5x+13|=2x-7
2,|2x|+|3x-8|-|4x+1|=5x-2
3, |x+1|+|x-3|+|x-10|=20