Bài 1: Tìm x, biết:a) 3 n . 3 -2 = 3 5b) 6 4-x = 216c) (x+1) 3 =-125d) \(\left(\frac{1}{64}\right)^x=\left(-\frac{1}{8}\right)^{14}\)e) \(\left(-\frac{2}{3}\right)^x=-\frac{8}{27}\)f) (x-1) 4 =(x-1) 2g) \(\frac{5^5}{5x}=5^{18}\)h) \(\frac{2^{4-x}}{16^5}=32^6\)k) \(\frac{2^{2x-3}}{4^{10}}=8^3.16^5\)i) \(\frac{2^3}{2^x}=4^5\)m) 9.5 x=6.5 6 + 3.5 6n) 7.2 x =2 9 +5.2 8HELP ME...
Đọc tiếp
Bài 1: Tìm x, biết:
a) 3 n . 3 -2 = 3 5
b) 6 4-x = 216
c) (x+1) 3 =-125
d) \(\left(\frac{1}{64}\right)^x=\left(-\frac{1}{8}\right)^{14}\)
e) \(\left(-\frac{2}{3}\right)^x=-\frac{8}{27}\)
f) (x-1) 4 =(x-1) 2
g) \(\frac{5^5}{5x}=5^{18}\)
h) \(\frac{2^{4-x}}{16^5}=32^6\)
k) \(\frac{2^{2x-3}}{4^{10}}=8^3.16^5\)
i) \(\frac{2^3}{2^x}=4^5\)
m) 9.5 x=6.5 6 + 3.5 6
n) 7.2 x =2 9 +5.2 8
HELP ME !!!
