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Condition for a Given Number to Be a Root
## Formula
For:
$$f(x)=ax^2+bx+c$$
a number $$k$$ is a root if:
$$f(k)=0$$
Therefore:
$$ak^2+bk+c=0$$
## Usage
- Used to determine unknown parameters when a specified value is given as a root.
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Condition for a Given Number to Be a Root
## Formula
For:
$$f(x)=ax^2+bx+c$$
a number $$k$$ is a root if:
$$f(k)=0$$
Therefore:
$$ak^2+bk+c=0$$
## Usage
- Used to determine unknown parameters when a specified value is given as a root.
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