Question

If $α, β$ are the roots of a quadratic equation $ax^2+bx+c=0,\ a≠0$ then $α^2+β^2$

• A. $\frac {1}{b^2}(a^2+2bc)$
• B. $\frac {1}{b^2}(a^2-2bc)$
• C. $\frac {1}{a^2}(b^2+2ac)$
• D. $\frac {1}{a^2}(b^2-2ac)$

Answer 1

Answer: (D)

$\frac {1}{a^2}(b^2-2ac)$

Answer 2

The correct option is (D): $\frac {1}{a^2}(b^2-2ac)$.