Tìm x biết |2x - 3 |x - 1| | = 11
Bài 2 Tìm x biết :
a) -5 | x - 3 | + | 1/2x + 4 | = 7|
b) | 2x + 1 | - 4 | 5 - x | = 9
c) | 9 - | x | = 8
d) - | 2x + 4/3 | - 11 - x | = -7/3
Tìm x biết :
\(\left|x-3\right|-2\left|5-2x\right|=11\)
Tìm x biết: 4/(x+2).(x+6) + 7/(x+6).(x+13) = 2x+1/(x+2).(x+16) - 3/(x+13).(x+16)
Tìm x biết: 4/(x+2).(x+6) + 7/(x+6).(x+13) = 2x+1/(x+2).(x+16) - 3/(x+13).(x+16)
Tìm x biết: 4/(x+2).(x+6) + 7/(x+6).(x+13) = 2x+1/(x+2).(x+16) - 3/(x+13).(x+16)
Tìm x biết: 4/(x+2).(x+6) + 7/(x+6).(x+13) = 2x+1/(x+2).(x+16) - 3/(x+13).(x+16)
I. Tìm x,biết :
\(\frac{1}{2.4}+\frac{1}{4.6}+...+\frac{1}{\left(2x-2\right)2x}=\frac{11}{48}\)
( \(x\in N,x\ge2)\)
Bài 5: Tìm x biết:
a) \(\left(2x-1\right)^4=16\)
b) \(\left(2x+1\right)^4=\left(2x+1\right)^6\)
c) \(\left||x+3\right|-8|=20\)