(W - 9)2  का विस्तार करें –

  • 1

    (W2 – 9W + 81)
     

  • 2

    W2 – 9W + 18

  • 3

    (W2 –18W - 81)

  • 4

    (W2 – 18W + 81)

Answer:- 4

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