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LolloLoll
@LolloLoll
July 2022
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Пожалуйста, помогите с решением!
4t^2 + 28t + 49 = 0
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nurik2010
4t^2 + 28t + 49 = 0
D=784-784=0
t=-28/8=-3.5
ответ:-3,5
0 votes
Thanks 1
TenderTime
4t^2 + 28t + 49 = 0
D= b
²-4ac= 784-784=0- 1 корень
t₁₂= ⁻b⁺₋ √D/2a=-28/8=-14/4=-7/2=-3.5
0 votes
Thanks 1
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Answers & Comments
D=784-784=0
t=-28/8=-3.5
ответ:-3,5
D= b²-4ac= 784-784=0- 1 корень
t₁₂= ⁻b⁺₋ √D/2a=-28/8=-14/4=-7/2=-3.5