Question

720 : (x - 17 ) = 12

5^x . 25 ³ = 125 ⁴

Answer 1

x-17=60

x=77

Answer 2

\(720:\left(x-17\right)=12\)

\(x-17=720:12\)

\(x-17=60\)

\(x=77\)

\(5^x.25^3=125^4\)

\(5^x.5^{2.3}=5^{3.4}\)

\(x+6=12\)

\(x=6\)

Answer 3

a) \(720:\left(x-17\right)=12\)

\(\Leftrightarrow x-17=720:12\)

\(\Leftrightarrow x-17=60\)

\(x=60+17\)

\(x=77\)

b) \(5^x.25^3=125^4\)

\(\Leftrightarrow5^x.5^6=5^{12}\)

\(\Leftrightarrow5^x=5^{12}:5^6\)

\(\Leftrightarrow5^x=5^6\)

\(\Leftrightarrow x=6\)

Good luck !!! Rất vui vì giúp đc bạn <3