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MyNameMaks
@MyNameMaks
July 2022
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Решить уравнения:
1)4х^2 + 4x +1 =0
2)x^2 -10x +36=0
( Знак " ^ " -это степень , т.е. 4х^2 = 4х во второй степени)
Заранее благодарен!!!
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alexooooon
4x^2 + 4x + 1 = 0;
D = b^2 - 4ac;
D = 4^2 - 4 * 4 * 1;
D = 16 - 16 = 0;
D = 0, один корень!
x1 = -b/2a;
x1:x = -4/2*4;
x = -4/8;
x = -1/2;
Ответ: -1/2.
2)
1x^2 - 10x + 36 = 0;
D = b^2 - 4ac;
D = -10^2 - 4 * 1 * 36;
D = 100 - 144 = -44;
D < 0, корней нет!
Ответ: x ∈ Ø.
1 votes
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Answers & Comments
D = b^2 - 4ac;
D = 4^2 - 4 * 4 * 1;
D = 16 - 16 = 0;
D = 0, один корень!
x1 = -b/2a;
x1:x = -4/2*4;
x = -4/8;
x = -1/2;
Ответ: -1/2.
2) 1x^2 - 10x + 36 = 0;
D = b^2 - 4ac;
D = -10^2 - 4 * 1 * 36;
D = 100 - 144 = -44;
D < 0, корней нет!
Ответ: x ∈ Ø.