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Quadratic equation solver / calculator.

Enter the quadratic equation coefficients a, b, c and press the
*Calculate* button:

The quadratic equation is given by:

*ax*^{2 }+* bx *+* c *= 0

The quadratic formula is given by:

The discriminat is:

Δ =* b*^{2 }-* *4*ac*

The quadratic formula with discriminat is:

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Users write Now: Santa Klaus • 2 years ago Please explain why the subtotal is needed? Then I should, from a long example with the signs of multiplication and addition, also determine what needs to be added.

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