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AminaRose
@AminaRose
July 2022
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решите уравнения а) х*(х+5)*(х-19)=0
б) |1x+5| =9
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А)
х*(х+5)*(х-19)=0
или x-19=0
x(x+5)=0...........................
x3=19
x1=0
или x+5=0
...............
x2=-5
ответ: 0, -5, 19
2)
|1x+5| =9
|x+5| =9
а) x≥-5
x+5=9
x=9-5
x=4
б)x<-5
-x-5=9
-x=9+5
x=-14
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Answers & Comments
или x-19=0
x(x+5)=0...........................x3=19
x1=0 или x+5=0
...............x2=-5
ответ: 0, -5, 19
2) |1x+5| =9
|x+5| =9
а) x≥-5
x+5=9
x=9-5
x=4
б)x<-5
-x-5=9
-x=9+5
x=-14