Question

Tìm x 

25^2.x : 5x = 125²

Giúp tớ với

Answer 1

\(25^{2x}:5^x=125^2\)

\(\Rightarrow5^{4x}:5^x=\left(5^3\right)^2\)

\(\Rightarrow5^{4x-x}=5^6\)

\(\Rightarrow5^{3x}=5^6\)

\(\Rightarrow3x=6\)

\(\Rightarrow x=2\)

Answer 2

x = 2

Answer 3

\(=\left(25^2\right)^x\div5x=125^2\)

\(=625^x\div5^x=125^2\)

\(=\left(625\div5\right)^x=125^2\)

\(=125^x=125^2\)

\(=>x=2\)