Question

(15.3⁷-3⁸):(4.9⁴)

Answer 1

Bn ơi: 15.3⁷ là 15,3⁷ hay 15 x 3⁷ bn

Answer 2

\(\dfrac{15\cdot3^7-3^8}{4\cdot9^4}=\dfrac{5\cdot3^8-3^8}{4\cdot3^8}=1\)

Answer 3

\(\left(15.3^7-3^8\right):\left(4.9^4\right)=\left(15.3^7-3^7.3\right):\left(4.9^4\right)=\left(12.3^7\right):\left(4.3^8\right)=1\)