X2+2x=5 by completing the square. Round your answers to the nearest hundredths

  x = -3.45 or +1.45

Step-by-step explanation:

To complete the square, add the square of half the x-coefficient to both sides of the equation.

  x^2 +2x = 5

  x^2 + 2x + 1 = 6

  (x +1)^2 = 6 . . . . . . it can be helpful to write the left side as a square

  x +1 = ±√6 . . . . . . . take the square root; next subtract 1

  x = -1 ±√6 = {-3.45, 1.45}

step-by-step explanation:

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