If $\alpha$ and $\beta$ are the zeroes of the quadratic polynomial $ax…

Question

If $\alpha$ and $\beta$ are the zeroes of the quadratic polynomial $ax^2+bx+c$ with $a
eq 0$, then $\alpha+\beta$ equals

Accepted Answer

C. $-\dfrac{b}{a}$

For a quadratic polynomial $ax^2+bx+c$, the relation between zeroes and coefficients is $\alpha+\beta=-\dfrac{b}{a}$ and $\alpha\beta=\dfrac{c}{a}$.
**So the required value is $-\dfrac{b}{a}$.**

Answer

$\dfrac{c}{a}$

Answer

$\dfrac{b}{a}$

Answer

$-\dfrac{c}{a}$

If $\alpha$ and $\beta$ are the zeroes of the quadratic polynomial $ax^2+bx+c$ with $a\neq 0$, then $\alpha+\beta$ equals

Keep practising Unit 1B2: Algebraic Limits and Continuity