Question

[võ phạm anh kiêt]

27 nhân 3 mũ x trừ 5=3 mũ 10

Answer 1

[Toru]

\(27\cdot3^{x-5}=3^{10}\\\Rightarrow 3^3\cdot3^{x-5}=3^{10}\\\Rightarrow3^{3+x-5}=3^{10}\\\Rightarrow3^{x-2}=3^{10}\\\Rightarrow x-2=10\\\Rightarrow x=10+2\\\Rightarrow x=12\\Vậy:x=12.\)

Answer 2

[võ phạm anh kiêt]

f