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yanasad
@yanasad
July 2022
2
5
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РЕШИТЕ КВАДРАТНЫЕ УРАВНЕНИЯ!
x^2-4x+4=0
x^2-8x+15=0
x^2+12x=-35
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Answers & Comments
ingaiodogolvis
1. D=0
Х1= 2
2. D= 4
Х1= 5
Х2=3
3. D=4
Х1=-5
Х2=-7
1 votes
Thanks 1
волк217
X^2-4x+4=0
d=16-4*1*4=0
x=4/2
x=2
x^2-8x+15=0
d=64-60=4
x1=(8-2)/2=3
x2=(8+2)/2=5
ответ: 3 и 5
3 ответ x1 = -7
x2= -5
1 votes
Thanks 0
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Answers & Comments
Х1= 2
2. D= 4
Х1= 5
Х2=3
3. D=4
Х1=-5
Х2=-7
d=16-4*1*4=0
x=4/2
x=2
x^2-8x+15=0
d=64-60=4
x1=(8-2)/2=3
x2=(8+2)/2=5
ответ: 3 и 5
3 ответ x1 = -7
x2= -5