Expand $(2 x+5 y)^{2}$.

  • A
    $4 x^{2}+20 x y+25 y^{2}$
  • B
    $4 x^{2}+10 x y+25 y^{2}$
  • C
    $2 x^{2}+20 x y+5 y^{2}$
  • D
    $4 x^{2}+25 y^{2}$

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