Tìm x biết:
a) (2x + 3/5)^2 - 9/25 = 0
b) 3.(3x - 1/2)^3 +1/9 =0
Tìm x biết : x . ( x + 3 ) = 0 , ( x + 2 ) . ( 3x - 9 ) = 0 , ( x - 2 ) . ( x + 1 ) = 0
tìm x biết:
(3x-1) [- 1/2x+5]=0
1/4+1/3:(2x-1)=-5
[2x+3/5]2 - 9/25=0
-5(x+1/5)-1/2(x-2/3)=3/2x - 5 /6
[x+1/2]x [2/3-2x]=0
17/2-|2x-3/4|=-7/4
2/3x-1/2x =5/12
(x+1/5)2+17/25=26/25
[x.44/7+3/7].11/5-3/7=-2
3[3x-1/2]+1/9=0
Tìm x thuộc Z , biết :
a ) |2x-1| - 3 = 5
b ) |3x-5| = 4
c ) |5x-1| = | -3-3x |
d ) |4 x-8| = | x + 1 |
e ) |3x - 5 | - | 4x + 9 | = 0
Tìm x biết:
a,(2x+3/5)^2-9/25=0
b,(3x-1).(-1/2x+5)=0
c, (7/5)^x+1-(1/5)^x=-4/625
d,(2/3)^x+2+(2/3)^x+1=20/27
Tìm x biết:
3 (3x-1/2)^3+1/9=0
[ CẢ cách giải nữa nhé]
tìm x biết trị tuyệt đối của 2x-1/3
b) (x+ 1/2)^2 = 4/9
c)3/5.(x-5/6)=3/10
d) (3x-1).(x+1/3)=0
Tìm x biết : a ) ( x - 2 ) . ( 3x - 9 ) = 0
b ) ( 3 - x ) . ( x + 5 ) = 0
c ) ( x + 1 ) . ( 4 - 2x ) = 0
Làm đúng tick
Bài 1: Tìm x, biết:
a, (2x + 3/5)2 = \(\frac{9}{25}\)
b, 3(3x-1/2)3+1/9=0
c, -5(x+1/5)-1/2(x-2/3)=2/3x-5/6
d, 3(x-1/2)-5(x+3/5)=x+1/5