Các câu hỏi tương tự
Tim x,bietx/1×2+x/2×3+x/3×4+...+x/2006×2007=2006/2007
cau 1,(n^2-7)\(⋮\)n+3
cau 2 tim x;y;z
bietx-y=-9
y-z=-10
z+x=11
Tim x
a) 2^x = 32
b)27.3^x=243
c)64.4^x=4^5
tim x :a.x^3=343;b.x^8/243=27;c.(1/2)^2xX=(1/2)^5;d.(1/3)^3xX=1/81;e.8/2^x=2
tim x thuoc so tu nhien, biet
a) x5 = 243
b) x3 = 216
c) x4 = 81
tim x :
a) ( x - 15 ) : 3 = 19
b) ( 5x - 45 ) x 15 = 450
c) 187 - 3( x + 4 ) = 34
d) 9x - 45 = 3^7 : 3^5
e ) ( 12x - 4^3 ) x 8^3 = 4 x 8^4
f ) x^2 = 4 , x^3 = 27
g ) ( x + 1 )^2 = 4
h ) ( 2x - 1 )^2 = 25
k ) ( 2x - 1 )^5 = 243
giup mik nhanh nhat co the nha
tim x va m.
3 mũ 2m+1 nhân 2 mũ x =243
tim n E N;
A, 2 mu 2 =32
27. 3 mu n= 243
64. 4mu n=4 mu 5
9 mu 2.3 mu n=3 mu 7
1/ 6^x-3=1
2/ 5^x-2=125
3/ 5^x-2=25
4/ 3^x+4=243