64X3 – 343 = ?  

  • 1

    (4x – 7) (16x2 + 28x + 49)
     

  • 2

    (4x – 7) (16x2 - 28x + 49)
     

  • 3

    (4x – 7) (16x2 - 28x - 49)
     

  • 4

    इनमें से कोई नहीं

Answer:- 1

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