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ПОМОГИТЕ ПОЖАЛУЙСТА, СРОЧНО!
Докажите, что при любом значении p уравнение x^2-px+2p^2+1=0 не имеет корней.
Ответы 1
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Квадратное уравнение не имеет корней, если D <0D=(-p)²-4·(2p²+1)=p²-8p²-4=-7p²-4<0 при любом p
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Автор:
geniemcgee - 5 лет назад
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