x2-y2-9z2+6yz का गुणनखंड है-

  • 1

    (x+y-3z)(x+y+3z)

  • 2

    (x-y-3x)(x-y+2z)

  • 3

    (x+y-3z)(x-y+3z)

  • 4

    (x-2y+3z)(x-y+3z)

Answer:- 3

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