Resolfing of mathematical equations

Quadratic equation calculator

Quadratic equation belongs to general second-kind algebraic equations , where Х is a free variable, a, b, c are coefficients, where a is not equal to 0.

It can have value from one to two roots with real coefficients and depends on discriminant value. The roots may be complex and real.

Some general stages of solution:

1. Discriminant is calculated by such a formula: 

2. Roots of quadratic equation are found out with the help of online calculator by the next formula:

Enter a negative coefficient if You need to put a minus.

Quadratic equation solver

$x^2+$ $x+$ $=0$

  • Example:
  • $x^2$+2$x$+1$=0$
  • $x^2$-2$x$+3$=0$
  • $x^2$+1$=0$


Enter the task and press button "Solve", after pressing the detailed solution will appear here!
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You can always read answers to popular questions on the foot of the as well as leave your notes or requests for our site that has created the program for calculation and determination of the required values. Be sure that the calculation will be performed correctly.

Of course, You can calculate all manually but it will take much more time for You. If You would like to save free time, use our online resolvent that will be pleased to determine and perform the right calculation instead of You. Be mobile and treasure your time!