Bài 5: Lũy thừa của một số hữu tỉ
Các câu hỏi tương tự
tim x biet:
3^( x + 2 ) - 3^x = 24!
Tim so huu ti x, biet:
a/ \(5< 5^x< 625\)
b/ \(2^{x-1}=16\)
c/ \(\left(x-1\right)^{x+2}=\left(x-1\right)^{x+6}\)\(\left(x\in Z\right)\)
tim x.y biet:(x-1)^2+(y+2)^2=0
Giúp mình với mai nộp òi
(X-1/3)3=8/27
(5/3)6×x=(1/2)8×(10/3)8
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Tìm x biết:
1)25/12x+11/15=9/10
2)3/2x-2/5=1/3x-1/4
3)29/12[x]-5/6=3/8
4)[4x+3/4]-5/4=2
5)2x+2x+3=144
(x-1,2)^2=4
(x+1)^3=-125
(x+1,5)^8+(2,7-y)^10=0
3^-1.4^x+ 3.$^x+5/3. 27
9^-x. 27^x= 243
Rút gọn
a) \(\dfrac{2^{15}.9^4}{6^6.8^3}\)
b) \(\dfrac{45^{15}.5^{15}}{75^{15}}\)
c) \(\dfrac{8^{10}+4^{10}}{8^4+4^{11}}\)
d) \(\left(x^2\right)^5:\left(x^5\right)^2\)
tìm x: (1/2 - 1/3) . 6^x + 6^x+2 = 6^10 + 6^7
lm ơn giúp mifh vs ạ
Tìm x biết:
1) \(\dfrac{x+1}{2}+\dfrac{x+1}{3}+\dfrac{x+1}{4}=\dfrac{x+1}{5}+\dfrac{x+1}{6}\)
2) \(\dfrac{x+1}{2009}+\dfrac{x+2}{2008}+\dfrac{x+3}{2007}=\dfrac{x+10}{2000}+\dfrac{x+11}{1999}+\dfrac{x+12}{1998}\)