krissbrown5100 krissbrown5100
  • 10-04-2017
  • Mathematics
contestada

Solve the quadratic equation. (x + 3)2 = 64 A) x = 5 or -11 B) x = 11 or -5 C) x = ± 3 D) x = ± 11

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Аноним Аноним
  • 10-04-2017
(x + 3)^2 = 8^2
x+ 3 = 8 so x = 5
-x - 3 = 8 so x = -11

answer 
A) x = 5 or -11

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