\(\dfrac{125}{5^x}=5\\ \Rightarrow5^x=125:5\\ \Rightarrow5^x=25\\ \Rightarrow5^x=5^2\\ \Rightarrow x=2\)
` @ \color{Red}{sushiteam}`
(x⁵⁴)²=5¹⁰⁸
(5\(^{ }\)^x)²=125³:5²
Giải cứuuu
Tìm x : ( 5^2.x - 5^x+1) :5=125
tinh nhanh
4 x 125 x 25 x 8
2 x 8 x 50 x25 x125
2 x 3 x 4 x 5 x 50 x 25
25 x 20 x 125 x 8 - 8 x 20 x 5 x 125
125 - 125 . (x - 5 ) = 100
26 x 5^x-1- 5^x-1=125
\(\dfrac{125}{5^x}=5\)
tìm x biết
Tìm x,biết:
A) 8 + ( x - 9)= 125 - 64
B) 5×(x+7) -10 = 8×5
C) 7 × 7 - 7( 13 - 2× x) = 14
D) 320 : (x - 1) = ( 125 - 5 ×5 ) : 4 + 15
E) 240 : ( x -5 ) = 4 × 5 ×5 - 60 : 3
F) 49 × x - 14 × x = 49 × 10 - 70
(x+15)-125=57 : 55
720: [ 41-( 2x - 5 )= 23 .5
27- 3 ( x + 4 ) =23
2015x . 53 = 125
5^x : 5^2 = 125
