Các câu hỏi tương tự
a)x^20=x;b)2^x* 16^2=1024;c)64*4x=16^8;d)2^x-15=17;e)(7x-11)^3=2^5*5^2+200
1)2x+1×22014=22015
2)7x-2x=617:615+44:11
3)3x=9
4)7x-x=521:519+3×22-70
5)4x=64
6)9x-1=9
7)2x:25=1
8)(5x-9)3=216
9)5×37x-11=135
10)2×3x=19×38-812
Tìm x
x + 1/ 2 = 8/ -3
(-5/3)3 < x < -24/35 * -5/6
(7x-11)3 = (-3)2 *15 +208
Tim x biet
A, 2x +23x = 625
B, (2^2+4^2) x + 2^4 ×5 ×x =100
C, (3x + 1)^2 = 6^2 + 8^2
D, (7x -11)^3 = 7^2 × 5^2 - 15^2
E, (2x- 1)^4 = 3× (3^2+4^3+2)
TÌM X
(7x-11)^3=2^5.5^2+200
x^10=x
(2x-15)^5=(2x-15)^3
1. 6x+x=5^11:5^9+3
2. 7x-x=5^21:5^19+3x4-1
3. 7x-2x=6^17:6^15+44:11
Tìm x biết ( 7x-11)3 = (-3)2.15+208
a 2^x-15=17
b (7x-11)^3=2^5*5^2+200
Tìm x, biết :
a) x15 = x
b) 2.3x = 10 . 312 + 8 . 27
c) (7x - 11)3 = 25 . 52 + 200