Tìm x
1/ (x - 1/2)^3 = 8
2/ (x - 1)^3 = 8/27
3/ (x - 2/3)^x = 1/81
- Tìm x -
a) (x + 1/2)3 = 8/125
b) 3 . /x/ - 27 = 1/5
c)1/2 . (x + 1/3) = 1/16
Tìm x:
\(a\)) \(\dfrac{2}{3}+\left(x-\dfrac{1}{2}\right)^3=\dfrac{19}{27}\)
\(b\)) \(\left(\dfrac{3}{2}\right)^{2x-1}:\left(\dfrac{27}{8}\right)^3=\dfrac{81}{16}\)
\(c\)) \(\dfrac{1}{2}.2^x+4.2^x=9.2^5\)
\(d\)) \(\text{12 - (2x +1)}^2=-69\)
tìm x biết
1) x=-1/2 + 3/4 2) x - 1/5 = 2/11 3) x - 5/6 = 16/42 + -8/56
4) x/5 = 5/6 + -19/30 5) |x| - 1/4 = 6/18 6)x = -1/2 +3/4
7) x/15 = 3/5 + -2/3 8)11/8 + 13/6 = 85/x 9) x - 7/8 = 13/12
10) x - -6/15 = 4/27 11) -\(\dfrac{-6}{12}\)+ x = 9/48 12) x - 4/6 = 5/25 + -7/15
(-2/3)x = -8/27
Tìm x
Tìm x:
(x-2)3=8.
( 1 phần 5 - x)2= 1 phần 49
81:3x=3
9x-2=1 phần 27
27.x:23.x=64
(2 phần 3)x=(8 phần 27)2
Giúp giùm mình mấy bài này nha.
tìm x,y sao cho :2^x=4^(y-1) ; 27^y=3^(x+8)
tìm x,y sao cho : 2^x=4^(y-1) ; 27^y=3^(x+8)
Tìm x: (x-2)3 + 8/27 = 0