Các câu hỏi tương tự
a. 12^3:(3^ -4.64)
b. (3/7)^5.(7/3)^ -1.(5/3)^6:(343/625)^ -2
c. 5^4.125.(2,5)^ -5 . 0,04
viết biểu thức sau dưới dạng a^n
(3/7)^5 x (7/3)^7 x (5/3)^6 : (343/625)
Bài 1: a, x + 0,5 = -2/3 b, x - (-2/5) = 5/7 c, 5/4 - 6x = 7 1/2 d, 3 - 2x - (5/4 - 7/5) = 9/20 bài 2: a, x : (-2/3) mũ 3 = -2/3 b, (2/5) mũ 5 nhân x = (2/5) mũ 7 c, 343/125 = (7/5) mũ x d, (-1/3) nhân x = 1/243
(3/7)5.(7/3)-1.(5/3)6:(343/625)-2= ?
Bài 1:
a)x/0,9=5/6
b)-6/x=9/-15
c)14/15:9/10=x:3/7
d)1/3/5 :8=2,5:x
e)3x-7=5/2
f)x:0,2=0,8:x
g)x+11/14-x=2/3
(1/3/5 là 1 và 3/5 nhé)
bài 1:
a) X :(1/2)3 = -1/2
b) (3/4)5 . X = (3/4)7
c) (2/5)8 : X = (2/5)6
d) (2/3) . X = (4/9)3
e) (1/2)X = 1/32
f) 343/125 = (7/5)X
Tìm x:
a, (-3 / 4) ^ 3x-1 = -27 / 64
b, (4/5) ^ 2x+5 = 256 / 625
c, (x+3) ^5 / (x+2) ^2 = 64 / 27
d, x-1 / x+5 = 6/7
\(\left(\frac{3}{7}\right)^5.\left(\frac{7}{3}\right)^{-1}.\left(\frac{5}{3}\right)^6:\left(\frac{343}{625}\right)^{-2}\)
Bài 1:
a.35 1/6:(-4)/5-46 1/6:(-4)/5
b.1/6+5/6.3/2-3/2+1
c.-1/12-(2 5/8-1/3)
d.-5/4.8/9+-7/16.8/9-2
e.1/6.(-2 3/5)+1 2/5.(-13/5)
Bài 2
a.-5/8+x=(-2/3)^2
b.-1/4-3/4:x=-11/36
c.-22/15x+1/3=/-2/3-1/5/
d./-1/2-x/=1/3
e./2x+3/4/-6=-5
f.-5/7-/1/2-x/=-11/4
g.//x+5/-4/=3
h./17x-5/=/17x+5/
i./x-1/=2x-5
k.(x-1)^3=27
l.(2x-1)^2=25
n.5^x+2=625
m.(2x-1)^3=-8
o.x^2+x=0