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Roots of a Quadratic Equation

If α and ...

Question

If $α$ and $β$ are the roots of $a x^{2} - b x + c = 0$ $(a \neq 0)$ , then find the value of $α + β$ ?

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Solution

$a x^{2} - b x + c = 0$
$α + β =$ sum fo roots = $\frac{- (- b)}{a} = \frac{b}{a}$

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Roots of a Quadratic Equation

Standard XII Mathematics

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