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VasyaPupkin987654321
@VasyaPupkin987654321
June 2022
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Решите уравнение (− 2x+1)(− 2x−7)=0.
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Checov7400
4х²+14х-2х-7=0
4х²+12х-7=0
x1,2=(-6+/-√36+7*4)/4=(-6+/-8)/4
х1=(-6+8)/4=1/2=0,5
х2=(-6-8)/4=-14/4=-3,5
Ответ: (0,5;-3,5)
3 votes
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Answers & Comments
4х²+12х-7=0
x1,2=(-6+/-√36+7*4)/4=(-6+/-8)/4
х1=(-6+8)/4=1/2=0,5
х2=(-6-8)/4=-14/4=-3,5
Ответ: (0,5;-3,5)