Question

giải bài giúp mik nha!

/x-2/+2-x=0

Answer 1

| x - 2 | + 2 - x = 0

⇔| x - 2 | = x - 2

Vì | x - 2 | ≥ 0 ⇒ x - 2 ≥ 0

⇒ x ≥ 2

Answer 2

\(\left|x-2\right|+2-x=0\\ \Leftrightarrow\left|x-2\right|=x-2\ge0\\ \Rightarrow x\ge2\)

Answer 3

/x-2/+2-x=0

=> /x-2/+2= 0+x

=> /x-2/ +2= x

=> /x-2/ = x-2

=> x-2= x-2

=>.................. tự làm tiếp, ai giúp thì nhào vô

Answer 4

\(\left|x-2\right|+2-x=0\)

=> \(x-2+2-x=0\)

=>\(\left(x-x\right)-\left(-2+2\right)=0\)

=> \(\left(x-x\right)-0=0\)

mà x - x = 0 => x = 0

Answer 5

/x-2/ + 2 - x = 0

\(\Rightarrow\) (-x) + 2 + 2 - x = 0

\(\Rightarrow\) (-x) - x = 0 - 2 - 2

\(\Rightarrow\) (-2x) = - 4

\(\Rightarrow\) x = (-4) : (-2)

\(\Rightarrow\) x = 4 : 2

\(\Rightarrow\) x = 2

Answer 6

/x-2/+2-x=0

=> /x-2/+2= 0+x

=> /x-2/ +2= x

=> /x-2/ = x-2

=> x-2= x-2

Answer 7

\(\left|x-2\right|+2-x=0\)

=>\(\left\{{}\begin{matrix}x-2+2-x=0\\-x-2+2-x=0\end{matrix}\right.\)

=>\(\left\{{}\begin{matrix}x-x=0-2-2\\-x-x=0-2-2\end{matrix}\right.\)

=>\(\left\{{}\begin{matrix}2x=-4\\-2x=-4\end{matrix}\right.\)

=>\(\left\{{}\begin{matrix}x=-4:2=-2\\x=-4:-2=2\end{matrix}\right.\)

Vậy x= -2 hoặc 2

tick cho mk nhé !

Answer 8

/x-2/ + 2 - x = 0

\(\Rightarrow\left\{{}\begin{matrix}x-2+2-x=0\\\left(-x\right)+2+2-x=0\end{matrix}\right.\)

\(\Rightarrow\left\{{}\begin{matrix}x-x=0-2-2\\\left(-x\right)-x=0-2-2\end{matrix}\right.\)

\(\Rightarrow\left\{{}\begin{matrix}x-x=-4\\\left(-x\right)-x=-4\end{matrix}\right.\)

\(\Rightarrow\left\{{}\begin{matrix}2x=-4\\\left(-2x\right)=-4\end{matrix}\right.\)

\(\Rightarrow\left\{{}\begin{matrix}x=\left(-4\right):2\\\left(-x\right)=\left(-4\right):\left(-2\right)\end{matrix}\right.\)

\(\Rightarrow\left\{{}\begin{matrix}x=-2\\x=2\end{matrix}\right.\)

Vậy x = -2 hoặc x = 2