3/2+5/4+9/8/+17/16+33/32-6+x-1/x+1=31/32-2/2015

=(1+1/2)+(1+1/4)+(1+1/8)+(1+1/16)+(1+1/32-6+x-1/x+1=31/32-2/2015

=(1/2+1/4+1/8+1/16+1/32)+(1+1+1+1+1)-6+x-1/x+1=31/32-2/2015

=31/32+5-6+x-1/x+1=31/32-2/2015

=5-6+x-1/x+1=31/32-2/2015-31/32

=-1+x-1/x+1=-2/2015

=x-1/x+1=-2/2015- -1

=x-1/x+1=2013/2015

=>x=2014

x + 5 x 2 - ( 32 + 16 x 3 : 6 - 15 ) = 0

x + 5 x 2 - 25 = 0

x + 5 x 2 = 0 + 25

x + 5 x 2 = 25

x + 10 = 25

x = 25 - 10 

x = 15

1 a x=4

b x=-4

c x=-7

d x=3

e x=10

g  x=60

h x=36

i x=16

2a 1,2,3,4,5,6,7,8,9

b 1,2,3,4,5,6,7,8,9.........

c rỗng

3a 0

b 0

c10

Bạn cho mình các bước giải được không?

121544

a) 32.x+2=1342176728

32.x=134217728-2

32.x=134217726

x=134217726:32

x=4194303,938

mấy câu còn lại số lớn mik lười gõ

ban chac ko

\(\frac{2^{4-x}}{16^5}=32^6\)

\(\Rightarrow\frac{2^{4-x}}{\left(2^4\right)^5}=\left(2^5\right)^6\)

\(\Rightarrow\frac{2^{4-x}}{2^{20}}=2^{30}\)

\(\Rightarrow2^{4-x}=2^{30}.2^{20}\)

\(\Rightarrow2^{4-x}=2^{50}\)

\(\Rightarrow4-x=50\)

\(\Rightarrow x=-46\)

a) \(-\frac{2}{3}x=\left(-\frac{1}{2}\right)^2\)

\(\Leftrightarrow-\frac{2}{3}x=\frac{1}{4}\)

\(\Rightarrow x=-\frac{3}{8}\)

b) \(x\div\left(-\frac{2}{5}\right)^3=-\frac{2}{5}\)

\(\Leftrightarrow x=\left(\frac{2}{5}\right)^4\)

\(\Rightarrow x=\frac{16}{625}\)

c) \(2^x=32\)

\(\Leftrightarrow2^x=2^5\)

\(\Rightarrow x=5\)

d) \(\frac{16}{2^x}=2\)

\(\Leftrightarrow2^x=8=2^3\)

\(\Rightarrow x=3\)

e) \(\left(x-2\right)^2=9\)

\(\Leftrightarrow\orbr{\begin{cases}x-2=3\\x-2=-3\end{cases}}\Rightarrow\orbr{\begin{cases}x=5\\x=-1\end{cases}}\)

a, \(-\frac{2}{3}x=\left(-\frac{1}{2}\right)^2\Leftrightarrow-\frac{2}{3}x=\frac{1}{4}\Leftrightarrow x=-\frac{3}{8}\)

b, \(\frac{x}{-2,5^3}=-\frac{2}{5}\Leftrightarrow5x=\frac{125}{4}\Leftrightarrow x=\frac{25}{4}\)

c, \(2^x=32\Leftrightarrow2^x=2^5\Leftrightarrow x=5\)

d, mk chưa hiểu đề lăm

e, \(\left(x-2\right)^2=9\Leftrightarrow\orbr{\begin{cases}x-2=3\\x-2=-3\end{cases}\Leftrightarrow\orbr{\begin{cases}x=5\\x=-1\end{cases}}}\)

a)\(\frac{-2}{3}.x=\left(\frac{-1}{2}\right)^2\Rightarrow\frac{-2}{3}.x=\frac{1}{4}\Rightarrow x=\frac{1}{4}:\left(\frac{-2}{3}\right)\Rightarrow x=\frac{-3}{8}\)

b)\(x:\left(\frac{-2}{5}\right)^3=\frac{-2}{5}\Rightarrow x:\frac{-8}{125}=\frac{-2}{5}\Rightarrow x=\frac{-2}{5}.\frac{-8}{125}\Rightarrow x=\frac{16}{625}\)

c)\(2^x=32\Rightarrow2^x=2^5\Rightarrow x=5\)

d)\(\frac{16}{2^x}=2\Rightarrow2^x.2=16\Rightarrow2^x=8\Rightarrow2^x=2^3=>x=3\)

e)\(\left(x-2\right)^2=9\Rightarrow\orbr{\begin{cases}\left(x-2\right)^2=3^2\\\left(x-2\right)^2=\left(-3\right)^2\end{cases}}\)

\(\Rightarrow\orbr{\begin{cases}x-2=3\\x-2=-3\end{cases}\Rightarrow\orbr{\begin{cases}x=5\\x=-1\end{cases}}}\)

cậu có thể tham khảo bài làm trên đây ạ, chúc cậu học tốt ^^