\(\frac{\left(3-x\right)^{10x}}{\left(3-x\right)^{20}}=1\Leftrightarrow\left(3-x\right)^{10x-20}=\left(3-x\right)^{10\left(x-2\right)}=1\\ \)
\(\orbr{\begin{cases}x-2=0=>x=2\\3-x=+-1\orbr{\begin{cases}x=2\\x=4\end{cases}}\end{cases}}\)\(\orbr{\begin{cases}x-2=0\Rightarrow x=2\\3-x=!1!\end{cases}}\)\(\orbr{\begin{cases}x=2\\x=4\end{cases}}\)
a ) (3 - x)10x : (3 - x)20 = 1 ( x khác 3 )
TÌm x
a,(3-x)^ 10x : (3-x)^20=1
b, 2^x-1+ 3^3= 5^2+2*5
Tìm x biết (3x-15)7=0 ;42x-6=1 ;(3-x)10x/(3-x)20=1(x khác 3) (x-6)3=(x-6)2
1. Tìm 1 số tự nhiên x,biết
a.7*7x+1=343
b.23*2x=64
c.(3x-15)7=0
d.4(2x-6)=1
e.(3-x)10x:(3-x)20=1 (x khác 3)
f.(x-6)3=(x-6)2
Tìm x biết :
a) (3x-15^7)=0
b) 4^2x-6=1
c) (3-x)^10x:(3-x)^20=1 (x#3)
d) (x-6)^3=(x-6)^2
(3-x)^10x:(3-x)^20=1(x ko =3)
Tìm số tự nhiên x biết
A) ( 3x - 15 )^7 = 0
B) 4^2x-6 = 1
C) ( 3 - x ) ^10x : ( 3 - x ) ^ 20 = 1
D) ( x - 6 )^ 3 = ( x - 6 ) ^2
tim x
(3-x)^10x: (3-x)^20=1
1.Tìm xez
a)x.(x+1)=6
b)x2-7x+12=0
c)5(x-2)-3(x+2)=2-x
d)3(4-x)-2(x-1)=x+20
e)5x2+10x=0
