Question

5^x+5 - 2017⁰ = 2³.3 

Answer 1

\(\Leftrightarrow5^{x+5}=24+1=25\)

=>x+5=2

hay x=-3

Answer 2

5\(^{x+5}\)-1=8.3

5\(^{x+5}\)-1=24

5\(^{x+5}\)=25

5\(^{x+5}\)=5\(^2\)

=>x+5=2

=>x=-3

vậy x=-3

Answer 3

5^x+5-1=24
5^x+5   =24+1
5^x+5   =25
5^x+5   =5²
x+5    =2
x        =2-5
x        =-3