Translate: The condition for the roots of the quadratic equation \[ ax^2 + bx - c = 0 \quad (a \ne 0) \] to be equal is:

Q.Translate: The condition for the roots of the quadratic equation \[ ax^2 + bx - c = 0 \quad (a \ne 0) \] to be equal is:

Translate: If the roots of the equation \[ ax^2 + bx - c = 0 \quad (a \ne 0) \] are equal, then \[ b^2 - 4a(-c) = 0 \Rightarrow b^2 + 4ac = 0 \]

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