$4 x^{2}+9 y^{2}+49 z^{2}-12 x y+42 y z-28 z x$ ના અવયવ પાડો.

  • A
    $(2x - 3y - 7z)^2$
  • B
    $(2x + 3y - 7z)^2$
  • C
    $(2x - 3y + 7z)^2$
  • D
    $(2x + 3y + 7z)^2$

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નીચેના ઘનને વિસ્તૃત સ્વરૂપમાં લખો:
$(4x - 3y)^{3}$

નીચેનાનું અવયવીકરણ કરો: $27 p^{3} - \frac{1}{216} - \frac{9}{2} p^{2} + \frac{1}{4} p$

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