Решите уравнение: |x−2|=4−x.решите уравнение: |x−2|=4−x.
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05.10.2019 10:22
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|x-2|=|4-x|
(x-2)²=(4-x)²
(x-2)²-(4-x)²=0
(x-2-4+x)(x-2+4-x)=0
(2x-6)*2=0
2x-6=0
2x=6
x=3