Multiple choice

Solve the following quadratic equations by factorization method: $a^2b^2x^2-(a^2+b^2)x+1=0$

  1. $\left \{ \dfrac{1}{b^2}, \dfrac{1}{a^2} \right \}$ 
  2. $\left \{ \dfrac{-1}{b^2}, \dfrac{1}{a^2} \right \}$ 
  3. $\left \{ \dfrac{1}{b^2}, \dfrac{-1}{a^2} \right \}$ 

  4. None of these
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C Correct answer

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