Nhờ mọi người giúp mình vs!

Tìm x thuộc Q khi:

a)3x-1 =243

b)\(\left(\dfrac{2}{3}\right)^{x+1}=\dfrac{8}{4}\)

c) 3x+3x+2=270

d) \(\left(x-\dfrac{5}{2}\right)^2=144\)

e) \(\left(2x+1\right)^3=\dfrac{215}{27}\)

f) (2x-1)5 = -243

h) (27-1)2 = (2x-1)2

i) (2x+1)2 + (x+1)10 = 0

k) \(\dfrac{x-2}{5}=\dfrac{X+3}{2}\)

l) \(\dfrac{2}{x}=\dfrac{x}{50}\)

m) \(\dfrac{\left(x-3\right)}{4}=\dfrac{4}{x+3}\)

n) \(|x+\dfrac{3}{5}|-|x-\dfrac{7}{3}|\)

3) tìm x:

a) \(x^2=\dfrac{1}{16}\)

b)\(x^5\div x^2=\dfrac{-1}{64}\)

c)\(x^3\div x^2=\dfrac{32}{243}\)

d)\(\left(x^2\right)^2=\dfrac{81}{16}\)

Tìm x, biết:

\(\left(4x-3\right)^2=\left(4x-3\right)\)

Giúp mik nha.

Chìu nay mik nộp rồi .

\(\dfrac{2^{15}.9^4}{6^6.8^3}\)

bài 1 cho B = \(\dfrac{1}{2}+\left(\dfrac{1}{2}\right)^2+...+\left(\dfrac{1}{2}\right)^{99}\)

CMR :

a) B <1

b) B ko là số nguyên

Tìm n \(\in\) N biết: \(3^n.2^n=216\)

1,Tìm x thuộc Q biết

a,\(\left(3x-1\right)^4=81\)

b,\(\left(x+1\right)^5=32\)

Chung minh rang

a,76+75-74\(⋮\)11

b,109+108+107\(⋮\)222

a) (0, 5)2

b) (0, 5)3

c) (9, 7)0

So sánh :

\(\dfrac{2^{2010}+1}{2^{2007}+1}\) và\(\dfrac{2^{2012}+1}{2^{2009}+1}\)