Question

Answer 1

\(\left(x^6\right)^2=\dfrac{x^{18}}{x^5}\left(đk:x\ne0\right)\)

\(\Rightarrow x^{12}=x^{13}\)

\(\Rightarrow x^{13}-x^{12}=0\)

\(\Rightarrow x^{12}\left(x-1\right)=0\)

\(\Rightarrow\left[{}\begin{matrix}x=1\left(tm\right)\\x=0\left(ktm\right)\end{matrix}\right.\)

Answer 2

<=> x¹²=x¹⁸:x⁵

<=>x¹²=x¹³

=> x= 1 hoặc x=0