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1. For **Windows** or **Linux** - Press **Ctrl+D**

2. For **MacOS** - Press **Cmd+D**

3. For **iPhone (Safari)** - **Touch and hold**, then tap **Add Bookmark**

4. For **Google Chrome** - Press **3 dots** on top right, then press the **star sign**

1
### Step 1

Enter your Quadratic Equation problem in the input field.

2
### Step 2

Press Enter on the keyboard or on the arrow to the right of the input field.

3
### Step 3

In the pop-up window, select the needed operation. You can also use the search.

The square equation is a general algebraic equation: ax^{2}+bx+c=0, where x is the unknown, a,b and c are the coefficients and a is not equal to 0.

The expression ax^{2}+bx+c=0 is called the square trinomial

The root is the value of the variable x, turning the quadratic trinomial to zero, and the quadratic equation to true numeric equality.

Elements of the quadratic equation have their own names:

a is called the first or highest coefficient,

b is called the second, average or coefficient at x,

c is called a free member.