Question

Найти значение дискриминанта D, если a=7,b=−6,c=−45

Answer 1

Формула дискриминанта(D)= $b^{2}-4ac$

Дано:

а = 7

b = -6

с = -45

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Решение:

Подставим в уже имеющуюся формулу числовые значения:

D = $(-6)^{2} - 4 * 7 * (-45)$ = 36 - 4 * 7 * (-45) = 36 - (-1260) = 1296.

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Ответ: 1296

Answer 2

To find the discriminant (D) given the coefficients of a quadratic equation (ax^2 + bx + c = 0), you can use the formula:

D = b^2 - 4ac

where a, b, and c are the coefficients of the quadratic equation.

Given that a = 7, b = -6, and c = -45, plug these values into the formula:

D = (-6)^2 - 4 * 7 * (-45)

Now, calculate:

D = 36 - (-1260) D = 36 + 1260 D = 1296

So, the value of the discriminant D is 1296.