# Quadratic Equation Roots

A quadratic equation is represented as `ax`

. The general formula to find its roots (x-values for which y = 0) is:
^{2} + bx + c = 0

This formula provides two roots: `x`

. The value inside the square root, _{1}, x_{2}`b`

is known as the discriminant (^{2}-4ac`D`

). Based on the value of the discriminant, a quadratic equation can have:

- two distinct real roots (
`D > 0`

); - one real root (
`D = 0`

); - no real roots (
`D < 0`

).

Your code must return Iterable containing two values: the roots `x`

, sorted descending. If there's only one real root, both values will be the same. If there are no real roots, the Iterable should contain the string _{1}, x_{2}`"No real roots"`

.

**Input:** Three integers (int).

**Output:** Tuple or other Iterable of two numbers (int|float) or string (str).

**Examples:**

assert list(quadratic_roots(1, -3, 2)) == [2, 1] assert list(quadratic_roots(1, 0, -1)) == [1, -1] assert list(quadratic_roots(1, 2, 1)) == [-1, -1] assert list(quadratic_roots(1, 0, 1)) == ["No real roots"]

**How itâ€™s used:**
*this function can be useful in mathematical computations, physics simulations, optimization problems, or anywhere quadratic equations are utilized.*

**Preconditions:**

*a != 0*;*-10*.^{9}<= a, b, c <= 10^{9}

CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.

In order to install CheckiO client you'll need installed Python (version at least 3.8)

Install CheckiO Client first:

pip3 install checkio_client

Configure your tool

checkio --domain=py config --key=

Sync solutions into your local folder

checkio sync

(in beta testing) Launch local server so your browser can use it and sync solution between local file end extension on the fly. (doesn't work for safari)

checkio serv -d

Alternatevly, you can install Chrome extension or FF addon

checkio install-plugin

checkio install-plugin --ff

checkio install-plugin --chromium

Read more here about other functionality that the checkio client provides. Feel free to submit an issue in case of any difficulties.

Welcome to Pair Programming! Engage in real-time collaboration on coding projects by starting a session and sharing the provided unique URL with friends or colleagues. This feature is perfect for joint project development, debugging, or learning new skills together. Simply click 'Start Session' to begin your collaborative coding journey!

You are trying to join a pair programming session that has not started yet.

Please wait for the session creator to join.

It looks like the creator of the pair programming session closed the editor window.

It might happen accidentally, so that you can wait for reconnection.