pq Formula (quadratic formula)

The pq-formula is the better option compared to the more common quadratic formula (or ABC formula). It is about solving quadratic equations.

To get the pq you have to go like this:

ax² + bx + c = 0 | : a
x² + b/a x + c/a = 0
x² + px + q = 0

Now you can use the much more practical pq-formula shown on the left of this website.

如何使用它

Enter values for p and q in both text fields.

The buttons on the left side show the possible symbols you can enter. Decimals and fractions are supported.

To calculate the result with your input press the green "="-button.

计算器有什么作用？

结果显示可能需要几秒钟。

1. 插入您的值。
简化您的输入（如果您确实输入了分数）
2. Shows every step to calculate the result.
3. Shows the results for x1 and x2.