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Serezh0
@Serezh0
July 2022
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какое из уравнений имеет два различных корня
1) x^2 - 2x + 5 = 0
2) 9x^2 - 6x + 1 = 0
3) 2x^2 - 7x + 2 = 0
4) 3x^2 - 2x + 2 = 0
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falchenkomarin
Третье уравнение:
D=49-4*2*2=49-16=33>0
3 votes
Thanks 12
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D=49-4*2*2=49-16=33>0