Question

tìm x biết 

2^2x+1+3=35

Answer 1

2^2x+1+3=35

=>2^2x+1=35-3

=>2^2x+1=32

Mà: 2⁵=32

=>2^2x+1=2⁵

=>2x+1=5

=>2x=5-1

=>2x=4

=>x=4:2

=>x=2

Answer 2

2^2x+1+3=35

2^2x+1=35-3

2^2x+1=32

2^2x+1=2⁵

2x+1=5

2x=4

x=2

Answer 3

2^2x+1 + 3 = 35

=> 2^2x+1 = 32

=> 2^2x+1 = 2⁵

=> 2x +1 = 5

=> 2x = 4

=> x = 2 

Vậy x = 2