Question

[Lâm Bảo Yến]

\(\dfrac{21^2.14.125}{35^3.6}\)

giải hộ mik bài này

Answer 1

[Phạm Thế Tùng]

21^2.14.125/35^2.6

=(7.3)^2.7.2.5^3/(7.5)^2.2.3

=7^3.3^3.5^3/7^2.5^2.2.3

=7.3^2.5/2

=315/2

Answer 2

[boi đz]

\(\dfrac{21^2.14.125}{35^3.6}\)

\(=\dfrac{\left(7.3\right)^2.7.2.125}{\left(7.5\right)^3.2.3}\)

\(=\dfrac{7^2.3^2.7.2.125}{7^3.5^3.2.3}\)

\(=\dfrac{7^3.3^2.2.5^3}{7^3.5^3.2.3}\)

\(=3\)