900 số đấy bạn ạ

a/ \(2^{100}=\left(2^3\right)^{100}=8^{100}>8^{30}\)

b/ \(3^{75}=\left(3^3\right)^{25}=27^{25}\)

\(4^{50}=\left(4^2\right)^{25}=16^{25}\)

\(\Rightarrow3^{75}>4^{50}\)

c/ \(9^{199}=\left(3^2\right)^{199}=3^{398}\)

\(27^{121}=\left(3^3\right)^{121}=3^{363}\)

\(\Rightarrow9^{199}>27^{121}\)

d/ \(26^{38}>16^{38}=\left(2^4\right)^{38}=2^{152}\)

\(64^{25}=\left(2^6\right)^{25}=2^{150}\)

\(\Rightarrow26^{38}>64^{25}\)

k mk nha

b) a - b = 578 và a: b = 8 ( 53)

=> a = 8b + 53 

=> a = 8b + 53 = b + 578 

=> 7b = 578 - 53 = 525

=> b = 525 : 7 = 75 

=> a = 75 + 578 = 653

tíc mình nha!

4+9=13

NGUYEN HIEN

UNG HO NHA

thanks ban nha ^ - ^