Các câu hỏi tương tự
tìm x
3^x-1=1/243
81^-2x.27^x=9^5
2^x+2^x+3=144
tìm x, biết:
a. 2 . 3x - 405 = 3^x - 1
b.(1/81)^x . 27^2x = (-9)^4
Tìm x;ý biết :
a) ( x+11+y) + (x -4-y) =0
b). 81^-2x * 27^x =9^5
tìm x . biết
a)(2x+3)2=\(\frac{9}{144} \)
b) (3x-1)3=\(\frac{-8}{27}\)
c) (x4)2= \(\frac{x^{12}}{x^5}\)
d) x10=25x8
e) \(\frac{x^7}{81}\)= 27
f) \(\frac{x^8}{9}\)= 729
Xem chi tiết
a)(2x+3)2=\(\frac{9}{144} \)
b) (3x-1)3=\(\frac{-8}{27}\)
c) (x4)2= \(\frac{x^{12}}{x^5}\)
d) x10=25x8
e) \(\frac{x^7}{81}\)= 27
f) \(\frac{x^8}{9}\)= 729
Tìm x,y biết:
1) 3^X-1 = 1/243
2) 81^-2X x 27^X=9^5
3) ( x-y+3)^2 + (y-1)^2=0
Tìm x biết :(1,782x-2-1,78x):1,78x0(x-2)8 (x-2)6(x+2)327(frac{x}{1}-frac{1}{4})2frac{1}{4}2x+2x+314481-2x*27x95(frac{-1}{3})x-3frac{1}{81}Bạn nào nhanh nhất mình tick
Đọc tiếp
Tìm x biết :
(1,782x-2-1,78x):1,78x=0
(x-2)8= (x-2)6
(x+2)3=27
(\(\frac{x}{1}\)-\(\frac{1}{4}\))2=\(\frac{1}{4}\)
2x+2x+3=144
81-2x*27x=95
(\(\frac{-1}{3}\))x-3=\(\frac{1}{81}\)
Bạn nào nhanh nhất mình tick
1. Tìm x, biết:
a) 3x-1=\(\frac{1}{243}\) b) 2x+2x+3=144 c) 81-2x.27x=95
2. Tìm x,y biết:
a) x2+y4=0 b) (x-1)2+(y+2)2=0 c) (x-11+y)2+(x-4y)2=0
Tìm x:a) dfrac{2}{3}+left(x-dfrac{1}{2}right)^3dfrac{19}{27}b) left(dfrac{3}{2}right)^{2x-1}:left(dfrac{27}{8}right)^3dfrac{81}{16}c) dfrac{1}{2}.2^x+4.2^x9.2^5d) text{12 - (2x +1)}^2-69
Đọc tiếp
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
(x+1)2=81
(x+5)3=-64
(2x-3)2=9
(4x+1)3=27