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P^2 - 8p +21 = 6 Solve by completing the square
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17 votes
P^2 - 8p +21 = 6
Solve by completing the square

User Anthony Panozzo
by
8.5k points

1 Answer

4 votes

Answer:

  • p = 5 or p = 3

Explanation:

Given equation:

  • p² - 8p +21 = 6

Completing the square and solving for p:

  • p² - 2*4*p + 4² + 5 = 6
  • (p - 4)² = 1
  • p - 4 = ± 1
  • p = 5 or p = 3
User Joe Dyndale
by
8.3k points
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