Question

|x-2|=3

Answer 1

x=3+2

x=5

Answer 2

\(\left|x-2\right|=3\)

TH1: \(x-2=3\)

\(x=3+2\)

\(x=5\)

TH2: \(x-2=-3\)

\(x=\left(-3\right)+2\)

\(x=-1\)

Vậy \(x=\left\{-1;5\right\}\)

Answer 3

|x-2|=3

=> x-2 = 3 hoặc x-2 = -3

+ x-2 = 3 <=> x = 5

+ x-2 = -3 <=> x = -1

Vậy x= -1 hoặc x =5

Answer 4

| x-2 | =3

\(\Rightarrow\left[{}\begin{matrix}x-2=3\\x-2=-3\end{matrix}\right.\)\(\Rightarrow\left[{}\begin{matrix}x=3+2\\x=-3+2\end{matrix}\right.\)\(\Rightarrow\left[{}\begin{matrix}x=5\\x=-1\end{matrix}\right.\)

Vậy x=5 hoặc x=-1

Answer 5

\(|x-2|=3\)

\(\Rightarrow x-2=3\) hoặc \(x-2=-3\)

\(\Rightarrow x=5\) hoặc \(x=-1\)

Vậy \(x\in\left\{5;-1\right\}\)