Toán Lớp 6: Tìm x biết 2 Ix-1I 2021^0
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Toán Lớp 6: Tìm x biết 2 Ix-1I 2021^0
giúp mikk zớiiii
Comments ( 2 )
|x-1|=1:2
|x-1|=1/2
|x-1|=pm1/2
=>\(\left[ \begin{array}{l}x-1=\dfrac{1}2\\x-1=\dfrac{-1}2\end{array} \right.\)
=>\(\left[ \begin{array}{l}x=\dfrac{1}2+1\\x=\dfrac{-1}2+1\end{array} \right.\)
=>\(\left[ \begin{array}{l}x=\dfrac{3}2\\x=\dfrac{1}2\end{array} \right.\)
Vậy x in{3/2;1/2}