Question

giúp mình với ạ

 

Answer 1

x¹² : (x³)⁴ = x¹² : x^{3 . 4} = x¹² : x¹² = x^{12 - 12} = x⁰ = 1

Answer 2

\(x^{12}:\left(x^3\right)^4\)

\(=x^{12}:x^{12}\)

=1