Relation Between Roots and Linear Coefficient
## Formula
For:
$$ax^2+bx+c=0$$
with roots $$\alpha,\beta$$:
$$\alpha+\beta=-\frac ba$$
Hence:
$$b=-a(\alpha+\beta)$$
## Usage
- Used to determine the sum of roots or an unknown coefficient.
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CAT Formulas
Quadratic Equations
Relation Between Roots and Linear Coefficient
Relation Between Roots and Linear Coefficient
## Formula
For:
$$ax^2+bx+c=0$$
with roots $$\alpha,\beta$$:
$$\alpha+\beta=-\frac ba$$
Hence:
$$b=-a(\alpha+\beta)$$
## Usage
- Used to determine the sum of roots or an unknown coefficient.
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