Question

 

\(B=\frac{\left(3^2.5^2.7^2\right).\left(3^3.7^2\right)}{\left(3.5.7^2\right)^2}\)

giải cả bài nhé

Answer 1

Ta có : 

\(B=\frac{3^2.5^2.7^2.3^3.7^2}{3^2.5^2.7^4}=\frac{3^4.5^2.7^4}{3^2.5^2.7^4}=\frac{3^4}{3^2}=3^2=9\)

Vậy B = 9.

k nha bạn

Answer 2

B=\(\frac{\left(9.25.49\right).\left(9.49\right)}{735^2}\)

B=\(\frac{11025.441}{540225}\)

B=\(\frac{4862025}{540225}\)

B=9