Question

Tìm x 

16 x ( x - 1 phần 4 ) = 0 

32 x ( x- 8 ) = 32 

112 - ( x - 34 ) = 97 

181 - ( 210 - x ) = 119 

( 3 x - 1 ) ( x -6 ) = 0 

2^x = 4 

4^3x  = 64

Answer 1

\(16\cdot\frac{x-1}{4}=0\)

\(\Rightarrow\frac{x-1}{4}=0\)

\(\Rightarrow x-1=0\)

\(\Rightarrow x=1\)

vậy_

32(x - 8) = 32

=> x - 8 = 32 : 32

=> x - 8 = 1

=> x = 9

vậy_

112 - (x - 34) = 97

=> x - 34 = 112 - 97

=> x - 34 = 15

=> x = 49

vậy_

181 - (210 - x) = 119

=> 210 - x = 181 - 119

=> 210 - x = 62

=> x = 148

vậy_

\(\left(3x-1\right)\left(x-6\right)=0\)

\(\Rightarrow\orbr{\begin{cases}3x-1=0\\x-6=0\end{cases}\Rightarrow\orbr{\begin{cases}x=\frac{1}{3}\\x=6\end{cases}}}\)

vậy_

2^x = 4

=> 2^x = 2² 

=> x = 2

vậy_

4^3x = 64

=> 4^3x = 4³

=> 3x = 3

=> x = 1

vậy_