2^x+2-96=2^x
Điền Đ hoặc S
a) 96 : 4 x 2 = 24 x 2 = 48
b) 96 : 4 x 2 = 96 : 8 = 12
c) 96 : (4 x 2 ) = 96 : 8 = 12
Điền Đ, S
a. 96 : 4 x 2 = 24 x 2
= 48
b. 96 : 4 x 2 = 96 : 8
= 12
Tính rồi điền dấu thích hợp
a. 96 : 8 : 2 =
96 : ( 8 x 2 ) =
96 : 8 : 2 ...... 96 : ( 8 x 2 )
b. 81 : 9 : 3 =
81 : ( 9 x 3 ) =
81 : 9 : 3 ........ 81 : ( 9x 3)
a. 96 : 8 : 2 = 6
96 : ( 8 x 2 ) = 6
96 : 8 : 2 = 96 : ( 8 x 2 )
b. 81 : 9 : 3 = 3
81 : ( 9 x 3 ) = 3
81 : 9 : 3 = 81 : ( 9x 3)
\(^{2^{x+2}}\)-\(^{2^x}\)=96
2x+2-2x=96
=>2x\(\cdot\)22-2x=96
=>2x(22-1)=96
=>2x\(\cdot\)3=96
=>2x=96:3=32=25
=>x=5
Vậy x=5
`@` `\text {Ans}`
`\downarrow`
\(2^{x+2}-2^x=96?\)
`\Rightarrow 2^x . 2^2 - 2^x = 96`
`\Rightarrow 2^x . (2^2 - 1) = 96`
`\Rightarrow 2^x . 3 = 96`
`\Rightarrow 2^x = 96 \div 3`
`\Rightarrow 2^x =32`
`\Rightarrow 2^x = 2^5`
`\Rightarrow x = 5`
Vậy, `x = 5.`
2^4x:2^x:2^(x+1)=96-2^2(x+1)
2^(x+2)-2^x=96
2^x+2 -96 = 2^x
2x + 2 - 96 = 2x
=> 2x + 2 - 2x = 96
=> 2x.22 - 2x = 96
=> 2x-(22 - 1) = 96
=> 2x.3 = 96
=> 2x = 32
=> x = 5
Vậy x = 5
2^x+2-2^x=96
\(2^{x+2}-2^x=96\)
\(\Leftrightarrow2^x\cdot2^2-2^x=96\)
\(\Leftrightarrow2^x\left(2^2-1\right)=96\)
\(\Leftrightarrow2^x\cdot3=96\)
\(\Leftrightarrow2^x=96\div3\)
\(\Leftrightarrow2^x=32\)
\(\Leftrightarrow2^x=2^5\)
\(\Leftrightarrow x=5\)
Vậy x = 5
2^(x+2) - 2^x = 96
<=> (2^x)(2^2) -2^x = 96
(2^x)[(2^2) -1)] = 96
2^x = 96/3 = 32
2^5 = 32
Đáp số:
x = 5
chúc bn hok tốt
\(2^{x+2}-2^x=96\)
\(\Rightarrow2^x\cdot2^2-2^x\cdot1=96\)
\(\Rightarrow2x\left(2^2-1\right)=96\)
\(\Rightarrow2x\cdot3=96\)
\(\Rightarrow6x=96\)
\(\Rightarrow x=16\)
2 mu x+2 - 2 mu x =96 tim x
\(2^{x+2}-2^x=96\)
\(2^x.\left(2^2-1\right)=96\)
\(2^x.3=96\)
\(2^x=32\)
\(2^x=2^5\)
\(\Rightarrow x=5\)
\(2^{x+2}-2^x=96\)
\(2^x\left(2^2-1\right)=96\)
\(2^x\left(4-1\right)=96\)
\(2^x\cdot3=96\)
\(2^x=96:3\)
\(2^x=32\)
\(2^x=2^5\)
\(x=5\)