5*2^x+2 - 16*2^x - 16 = 0 Решите

Question

5*2^x+2 - 16*2^x - 16 = 0
Решите

Answer 1

5*2^x+2 - 16*2^x - 16 = 0

5^x*2^2-16*2^x=16

2^x*(20-16)=16

2^x*4=16 |:4

2^x=4

2^x=2^2

x=2