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No. Well, it depends what you mean with "any quadratic equation". The quadratic formula can solve any equation that can be converted to the form:

ax2 + bx + c = 0

Note that it involves only a single variable. There are other limitations as well; for example, no additional operations. If a variable, or the square of a variable, appears in the denominator (1/x, or 1/x2), then some might say that it is "quadratic", but it might no longer be possible to convert the equation into the standard form named above. Similarly, if you have additional operations such as square roots or higher roots, trigonometric functions, etc., it might not be possible to convert the equation into a form that can be solved by the quadratic formula.

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Q: Is it true The Quadratic Formula can be used to solve any quadratic equation?
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