Solve any quadratic equation the moment you type it. Enter a, b and c and the roots appear instantly, along with the discriminant. Real or imaginary, whole numbers or decimals, Quadratic handles it. FREE • Answers appear as you type, no solve button needed • Real and complex (imaginary) roots • The discriminant for every equation • A clean calculator keypad in light and dark mode QUADRATIC PRO, a one-time purchase • Step-by-step working for every equation • Three methods: the quadratic formula, completing the square and factoring • A graph of the parabola with the roots, vertex and y-intercept labelled • Vertex form, factored form, axis of symmetry and more Great for checking homework, studying for algebra tests, or understanding why the answer is what it is.
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