Question

2^x + 4.2^x=5.2⁵

Answer 1

Ta có : 2^x + 4.2^x =5.2⁵

=> 2^x.(1 + 4) = 5.2⁵

=> 2^x.5 = 5.2⁵

=> 2^x = 2⁵

=> x = 5

Vậy x = 5

Answer 2

Ta có:2^x + 4.2^x=5.2⁵

\(\Rightarrow\)2^x.5=5.2⁵

\(\Rightarrow\)2^x=2⁵

\(\Rightarrow\)x=5

Vậy.......

Answer 3

Bài làm

2^x + 4 . 2^x = 5 . 2⁵ 

2^x + 4 . 2^x = 5 . 32

2^x + 4 . 2^x = 160

2^x ( 1 + 4 ) = 160

2^x .     5      = 160

2^x               = 160 : 5 

2^x               = 32

Mà 32 = 2⁵ 

=> 2^x = 2⁵

=> x = 5

Vậy x = 5

# Học tốt #

Answer 4

2^x + 4 . 2 ^x= 5.2⁵

2^x .( 1+4)=5.2⁵

2^x .5=5.2⁵

=>2^x=2⁵

=>x=5

Answer 5

Ta có:2\(^x\)+4\(^2\)=5.2\(^5\)

\(\Rightarrow\)2\(^x\).(1+4)=5.2\(^5\)

\(\Rightarrow\)2\(^x\).5=5.2\(^5\)

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

\(\Rightarrow\)x=5

Vậy x=5

Answer 6

2^x+4.2^x=5.2⁵

<=> 5.2^x=5.2⁵

=> x=5

học tốt

Answer 7

\(2^x+4\cdot2^x=5\cdot2^5\)

\(\Rightarrow2^x\cdot\left(1+4\right)=5\cdot2^5\)

\(\Rightarrow2^x\cdot5=5\cdot2^5\)

\(\Rightarrow2^x=2^5\)

\(\Rightarrow x=5\)