Question

(x-2).(x^2-25)=0

Answer 1

giúp mik 

 

Answer 2

\(\left(x-2\right)\left(x^2-25\right)=0\)

\(\Leftrightarrow\left[{}\begin{matrix}x-2=0\\x^2-25=0\end{matrix}\right.\)

\(\Leftrightarrow\left[{}\begin{matrix}x=2\\x=\pm5\end{matrix}\right.\)

Answer 3

\(\left(x-2\right)\left(x^2-25\right)=0\)

\(\Rightarrow\) x-2=0      hoặc  \(x^2-25=0\)

     x=2                    \(x^2=25\)

                                \(\Rightarrow\left[{}\begin{matrix}x=5\\x=-5\end{matrix}\right.\)

Answer 4

x.(2x-1).(2y+1)=-35

Answer 5

x.(y-3)=-6