\(\left(x-6\right)^3=\left(x-6\right)^2\)
\(\Rightarrow\left(x-6\right)^3-\left(x-6\right)^2=0\)
\(\Rightarrow\left(x-6\right)^2.\left[\left(x-6\right)-1\right]=0\)
\(\Rightarrow\left(x-6\right)^2.\left(x-7\right)=0\)
\(\Rightarrow\orbr{\begin{cases}x-6=0\\x-7=0\end{cases}}\)
\(\Rightarrow\orbr{\begin{cases}x=6\\x=7\end{cases}}\)
Vậy \(\orbr{\begin{cases}x=6\\x=7\end{cases}.}\)
(x - 6)3 = (x - 6)2 => x - 6 = 0 ; 1 => x = 6 ; 7
\(\left(x-6\right)^3=\left(x-6\right)^2\)
\(\Rightarrow\left(x-6\right)^2.\left(x-6\right)=\left(x-6\right)^2.1\)
\(\Rightarrow x-6=1\)
\(\Rightarrow x=7\)
\(\left(x-6\right)^3=\left(x-6\right)^2\)
\(\Rightarrow x-6=1\) hoặc \(0\)
\(x-6=0\Rightarrow x=6\)
\(x-6=1\Rightarrow x=7\)
\(\left(x-6\right)^3=\left(x-6\right)^2\)
\(\left(x-6\right)^3-\left(x-6\right)^2=0\)
\(\left(x-6\right)^2.\left(x-6-1\right)\)=0
=> ( x -6)2 =0 hoac x - 6-1= 0
x-6 = 0 hoac x-7 =0
x=6 hoac x =7
vay x=6 hoac x=7
\(\left(x-6\right)^3=\left(x-6\right)^2\)
\(\Leftrightarrow x^3-18x^2+108x-216=\)\(x^2-12x+36\)
\(\Leftrightarrow x^3-19x^2+120x-252\)\(=0\)
\(\orbr{\begin{cases}x=7\\x=6\end{cases}}\)
