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kurbatova0507
@kurbatova0507
August 2022
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Х^2+48=14х решите уравнение
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izabella9
X^2-14x+48=0
D=196-4*48=196-192=4
√D=2
X1=14+2=16
X2=14-2=12
....
0 votes
Thanks 1
93931
X²+48 = 14x
x²+48-14x = 0
x²-14x+48 = 0
D = (-14)²-4*1*48 = 196-192 = 4.
14+√4 14+2 16
x₁ = _______ = ______ = _____ =
8.
1*2 2 2
14-√4 14-2 12
x₂ = _______ = ______ = _____ =
6.
1*2 2 2
Ответ : 6 ; 8.
3 votes
Thanks 1
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Answers & Comments
D=196-4*48=196-192=4
√D=2
X1=14+2=16
X2=14-2=12
....
x²+48-14x = 0
x²-14x+48 = 0
D = (-14)²-4*1*48 = 196-192 = 4.
14+√4 14+2 16
x₁ = _______ = ______ = _____ = 8.
1*2 2 2
14-√4 14-2 12
x₂ = _______ = ______ = _____ = 6.
1*2 2 2
Ответ : 6 ; 8.