Question

(9−x2)(3x−6)=0
giúp tớ với

Answer 1

\(\Leftrightarrow\left[{}\begin{matrix}x=3\\x=-3\\x=2\end{matrix}\right.\)

Answer 2

\(\Leftrightarrow3\left(x-2\right)\left(3-x\right)\left(3+x\right)=0\\ \Leftrightarrow\left[{}\begin{matrix}x=3\\x=-3\\x=2\end{matrix}\right.\)

Answer 3

\(\Leftrightarrow\)\(\left[{}\begin{matrix}x=3\\x=-3\\x=2\end{matrix}\right.\)

@Lâm

Answer 4

TH1: 9-x2 =0

x2=9-0=9

x=9:2=4,5

TH2: 3x-6=0

3x=0+6=6

x=6:3=2