\(\left(\frac{2}{3}\right)^x=\left(\frac{4}{9}\right)^4\)
\(\left(\frac{2}{3}\right)^x=\left[\left(\frac{2}{3}\right)^2\right]^4\)
\(\left(\frac{2}{3}\right)^x=\left(\frac{2}{3}\right)^8\)
x = 8
a.|3+x|-|x-7|=9
b.|3x-3|+|6x+2|=4
c.|x+1|+|x-4|=2
1, Tìm x biết
a, ( 4/5 )^2x+5 = 625/256
b, ( 3x - 4 )^4 = ( 3x - 4 )^2
c, 3^x+1 = 9^x
d, 2^2x+3 = 4^x-5
Tính :
a /125^3 : 9^3
b/ 32^4 .4^3
Tìm x :
( x + 1/2 ) ^2 = 4/25
Tìm x trong các tỉ lệ thức sau:
a, ( 1/3 . x ) : 2/3 = 7/4 : 2/5
b, 4,5 : 0,3 = 2,25 : ( 0,1 . x )
c, 8 : ( 1/4 . x ) = 2 : 0,02
d, 3 : 9/4 = 3/4 : ( 6 . x )
1, Tìm x
a, (3x^2-50)^2=5^4
2, Rút gọn
a, (3^4-3^3)^4/27^3
b, 25^3/(5^5-5^3)^2
3, Thực hiện phép tính
a, (-1/3)^2 . 9 - (1/2)^3 .16 +(2:1/2^2)
b, (3/7)^10 . (7^5)^9 : (9/25)^5
c, (0,25)^5 . 2^11 : (1/3)^2
Bài 1:tìm x
a)2-|3/2x - 1/4 |=|-1,25|
b)3/5+4/5.|x-3/4|=7/4
c)6,5-9/4:|x+1/3|=2
d)11/4+3/2:|4x-1/5|=7/2
e)15/4-2,5:|3/4x+1/2|=3
g)21/5+3:|x/4-2/3|=6
giúp mk nha làm câu nào cg đc
Bài 1:tìm x
a)2-|3/2x - 1/4 |=|-1,25|
b)3/5+4/5.|x-3/4|=7/4
c)6,5-9/4:|x+1/3|=2
d)11/4+3/2:|4x-1/5|=7/2
e)15/4-2,5:|3/4x+1/2|=3
g)21/5+3:|x/4-2/3|=6
giúp mk nha làm câu nào cg đc
Tìm x biết
a,|x-1|+2x=3
b,|x+1|+|x+3|=10-4x
c,|x+1++3|x-2|-5|4-x|=13-2x
d,3|x-2|-2|x+5|+4|x-1|=9-7x
Tìm x:
a, x/1,5 = 4/3
b, 2/9 = x/ -72
c, x : -3/8 = 1/3
