Question

Tìm x biết:

x . 125³ = 25³

Các bn ơi giải hộ Nhím với!

Answer 1

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

\(\implies x.(5^3)^3=(5^2)^3 \)

\(\implies x.5^{27}=5^6\)

\(\implies x=5^6:5^{27}\)

Answer 2

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

\(\Rightarrow x.\left(5^3\right)^3=\left(5^2\right)^3\)

\(\Rightarrow x.5^9=5^6\)

\(\Rightarrow x=\frac{5^6}{5^9}=\frac{1}{125}\)

Vậy x = 1/125

Answer 3

x . 125³ = 25³

x = 25³ ÷125³

x = 15625 ÷ 1953125

x = 8×10^-3