Question

........-х²+3х-10=0​

Answer 1

Ответ:

Объяснение:

Так как дискриминант отрицательный, то нет корней)

Answer 2

To solve the quadratic equation $x^2 - 3x - 10 = 0$, you can use the quadratic formula:

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

In your equation, $a = 1$, $b = -3$, and $c = -10$. Plug these values into the formula:

$x = \frac{-(-3) \pm \sqrt{(-3)^2 - 4(1)(-10)}}{2(1)}$

Simplify:

$x = \frac{3 \pm \sqrt{9 + 40}}{2}$

$x = \frac{3 \pm \sqrt{49}}{2}$

Now, take the square root of 49:

$x = \frac{3 \pm 7}{2}$

You have two possible solutions:

1. $x = \frac{3 + 7}{2} = \frac{10}{2} = 5$

2. $x = \frac{3 - 7}{2} = \frac{-4}{2} = -2$

So, the solutions to the quadratic equation $x^2 - 3x - 10 = 0$ are $x = 5$ and $x = -2$.