Q. [+10]

Posted on

87×65
42² × 8² – 9²

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Q. [+10]

Jawaban:

87 × 65

  • 87 × 65
  • 5.655

42² × 8² – 9²

  • 42² × 8² – 9²
  • ( 42 × 42 ) × ( 8 × 8 ) – ( 9 × 9 )
  • ( 1.764 × 64 ) – 81
  • 112.896 – 81
  • 112.815

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Gambar Jawaban

Gambar Jawaban

 sf87×65

 sf = 5.655

________________________

 sf {42}^{2} times {8}^{2} - {9}^{2}

 sf = (42 times 42) times (8 times 8) -(9 times 9)

 sf = 1.764 times 64 - 81

 sf = 112.815

Gambar Jawaban