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Condition for Roots of Opposite Signs
## Formula
The roots have opposite signs if:
$$\alpha\beta<0$$
Therefore:
$$\frac ca<0$$
## Usage
- Used to determine whether a quadratic has one positive and one negative root.
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Condition for Roots of Opposite Signs
## Formula
The roots have opposite signs if:
$$\alpha\beta<0$$
Therefore:
$$\frac ca<0$$
## Usage
- Used to determine whether a quadratic has one positive and one negative root.
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