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QUADRATIC EQUATIONS

Quadratic Equation: >Ax2+Bx+C=0 has general solution:

x1= -(B+SQRT((B)2 - 4AC))/2A;
x2= -(B-SQRT((B)2 - 4AC))/2A;

where both roots could be Real or Complex numbers. If A=0 the equation transorms to the linear one.

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QUADRATIC EQUATIONS SOLVER

X2+ X+ =
X1=
X2=

This app works on any combination of Decimals, Fractions and Mixed Numbers. Click on the toggle button to select either Fractions or Decimals mode, enter the coefficients of the quadratic equation and click on SOLVE button. Results X1 and X2 will be shown either as Real or Complex numbers. Following rules apply:

If Text box A is empty, system will assign 1 to A, so the Equation will look like: of x2+Bx+C=D.
If Text box B is empty, system will assign 0 to it, so the Equation will be like: Ax2+C=D.
If Text box C is empty, system will assign 0 to it, so the Equation will be like: Ax2+Bx=D.
Equation Ax2-Bx+C=D should be entered as Ax2+(-B)x+C=D.