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

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

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

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

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

\(\Rightarrow4-x=50\)

\(\Rightarrow x=-46\)

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

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

\(\Leftrightarrow2^{4-x}=16^5.32^6\)

\(\Rightarrow2^{4-x}=\left(2^4\right)^5.\left(2^5\right)^6\)

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

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

\(\Rightarrow4-x=50\)

\(\Rightarrow x=-46\)

Vậy...

\(\dfrac{2^{4-x}}{16^5}=32^6\Rightarrow\dfrac{2^{4-x}}{2^{20}}=2^{30}\Rightarrow2^{4-x}=2^{50}\Rightarrow x=-46\)

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

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

8 x 2 = 16       8 x 4 = 32       8 x 7 = 56       8 x 5 = 40

16 : 8 = 2       32 : 8 = 4       56 : 8 = 7       40 : 8 = 5

16 : 2 = 8       32 : 4 = 8       56 : 7 = 8       40 : 5 = 8

8 x 2 = 16       8 x 4 =32       8 x 7 =56 .     8 x 5 =40 

16 : 8 = 2       32 : 8 =4        56 : 8 =7        40 : 8 =5 

16 : 2 = 8       32 : 4 = 8       56 : 7 = 8       40 : 5 = 8

cái bài này bạn thuộc phép nhân chia của nó là làm dễ lắm nha

a)
\(\frac{1.2+2.4+3.6+4.8+5.10}{3.4+6.8+9.12+12.16+15.20}\)
\(\frac{2.3\left(1.2\right)+2.3\left(2.4\right)+2.3\left(3.6\right)+2.3\left(4.8\right)+2.3\left(5.10\right)}{3.4\left(3.4+6.8+9.12+12.16+15.20\right)}\)
\(=\frac{\left(3.4+6.8+9.12+12.16+15.20\right)}{2.3\left(3.4+6.8+9.12+12.16+15.20\right)}=\frac{1}{2.3}=\frac{1}{6}\)