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Solve the equation
x2 + 4x - 7 = 0
by completing the square.
Give your answers correct to 2 decimal places.

Will make brainliest

Solve the equation x2 4x 7 0 by completing the square Give your answers correct to 2 decimal places Will make brainliest class=

Respuesta :

mhanifa

See the steps below:

  • x² + 4x - 7 = 0
  • x² + 4x + 4 - 4 - 7 = 0
  • (x + 2)² - 11 = 0
  • (x + 2)² = 11
  • x + 2 = ± √11
  • x = - 2 ± √11
  • x = -2 ± 3.32
  • x = 1.32, x = - 5.32

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