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Задача Задача №2616898
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Аноним
12 января 2025 13:19 · публичный вопрос
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Аноним

3x²-7x+4=0

Ответ нейросети
12 января 2025 13:19

To solve the quadratic equation \(3x^2 - 7x + 4 = 0\), we can use the quadratic formula:

\[ x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \]

where \(a\), \(b\), and \(c\) are the coefficients from the equation \(ax^2 + bx + c = 0\). In this case:

  • \(a = 3\)
  • \(b = -7\)
  • \(c = 4\)

Now, we will calculate the discriminant (\(b^2 - 4ac\)):

\[ b^2 - 4ac = (-7)^2 - 4 \cdot 3 \cdot 4 = 49 - 48 = 1 \]

Since the discriminant is positive, we will have two distinct real roots.

Now, applying the quadratic formula:

\[ x = \frac{-(-7) \pm \sqrt{1}}{2 \cdot 3} \] \[ x = \frac{7 \pm 1}{6} \]

Now, we will calculate the two possible values for \(x\):

  1. \(x = \frac{7 + 1}{6} = \frac{8}{6} = \frac{4}{3}\)
  2. \(x = \frac{7 - 1}{6} = \frac{6}{6} = 1\)

Thus, the solutions to the equation \(3x^2 - 7x + 4 = 0\) are:

\[ x = \frac{4}{3} \quad \text{and} \quad x = 1 \]