Question

(5^2x.5^x+2):25 =125²

Answer 1

Tham Khảo]

Answer 2

(5^2x.5^x+2) : 25 = 125²

5^2x.5^x+2 = 125².25 = 5⁶.5²

5^2x+x+2 = 5⁸

5^3x+2 = 5⁸

=> 3x + 2 = 8

=> 3x = 6

=> x = 2

Answer 3

Ta có: \(\left(5^{2x}\cdot5^{x+2}\right):25=125^2\)

\(\Leftrightarrow5^{3x+2}=5^6\cdot5^2=5^8\)

hay x=2

Answer 4

(5^2x . 5^{x + 2}) : 25 = 125²

<=> 5^{2x + x + 2} : 25 = 125²

<=> 5^{3x + 2} : 5² = 15625

<=> 5^3x = 12625

<=> x = 2