Đáp án: A

B

\(\left|\dfrac{1}{2}x\right|=3-2x\\ \Rightarrow\left[{}\begin{matrix}\dfrac{1}{2}x=3-2x\\\dfrac{1}{2}x=-3+2x\end{matrix}\right.\\ \Rightarrow\left[{}\begin{matrix}\dfrac{1}{2}x+2x=3\\\dfrac{1}{2}x-2x=-3\end{matrix}\right.\\ \Rightarrow\left[{}\begin{matrix}\dfrac{5}{2}x=3\\-\dfrac{3}{2}x=-3\end{matrix}\right.\\ \Rightarrow\left[{}\begin{matrix}x=\dfrac{6}{5}\\x=2\end{matrix}\right.\)

`2:(1/2-2/3)^2+0,125^3xx8^3-(-12)^4:36^2`

`=2:(-1/6)^2+(0,125*8)^3-12^4:6^4`

`=2:1/36+1-(12:6)^4`

`=2xx36+1-2^4`

`=72+1-16`

`=73-16`

`=57`

2:(\(\dfrac{1}{2}\)-\(\dfrac{2}{3}\))\(^2\)+0,125\(^3\)x8\(^3\)-(-12)\(^4\):36\(^2\)

=2:(\(\dfrac{-1}{6}\))\(^2\)+\(\dfrac{1}{512}\)x512+12\(^4\):1296

=2:\(\dfrac{1}{36}\)+\(\dfrac{1}{512}\)x512+20736:1296

=72+1+16

=73+16

=89

\(2x-3\text{​​}\text{ ⋮ }x-1\)

\(\Rightarrow2\left(x-1\right)-1\text{ ⋮ }x-1\)

\(\text{mà 2(x-1) ⋮ x-1 }\)\(\Rightarrow1\text{ ⋮ }x-1\)

\(\Rightarrow\)\(x-1\inƯ\left(1\right)=\left\{\pm1\right\}\)

Vậy \(x\in\left\{0;2\right\}\)

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giải nhanh hộ mik nha

Không bình luận không liên quan đến nội dung của câu hỏi, làm phiền bạn tus.

Lời giải:

$|1-\sqrt{23}|+23-\sqrt{23}-|-2023|^0=\sqrt{23}-1+23-\sqrt{23}-1$

$=23-2=21$