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barxatty [35]
3 years ago
13

Prove: The square of a number that is two more than a multiple of 3 is one more than a multiple of 3.

Mathematics
1 answer:
xeze [42]3 years ago
8 0

Answer:

<u>To prove:</u>

  • (3x + 2)² is  3y + 1

<u>Expand the square:</u>

  • 9x² + 6x + 4 = (9x² + 6x + 3) + 1 = 3(3x² + 2x + 1)  + 1 = 3y + 1
  • Proven
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