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Multiple choice

If $\alpha $ and $\beta$ are the zeros of the quadratic polynomial $a x^{2}+bx+c$, then $\alpha^{2}-\beta^{2}=$

  1. $\sqrt{b^{2}-4ac}$
  2. $\dfrac{b\sqrt{b^{2}-4ac}}{2a}$
  3. $\dfrac{-b\sqrt{b^{2}-4ac}}{a^{2}}$
  4. $-\dfrac{b}{a^{2}}$
Reveal answer Fill a bubble to check yourself
C Correct answer

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