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For $ax^2+bx+c=0$, the sum of the roots equals:
A$-\dfrac{c}{a}$
B$-\dfrac{b}{a}$
C$\dfrac{b}{a}$
D$\dfrac{c}{a}$
Answer & Solution
Correct answer: B. $-\dfrac{b}{a}$
Sum of roots = −b/a.
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