kelleyjones70 kelleyjones70
  • 24-04-2020
  • Mathematics
contestada

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

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 24-04-2020

Answer:

  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}

Answer Link

Otras preguntas

What geographic feature were many of the Plateau Tribes (Colville, Chelan, Wenatchi, Wala Wala) located near?
Why do you think the issue of slavery and abolition increased tension between the north and south?
For the function [tex]y=-2x^2+4x+1[/tex], what are the coordinates of the vertex? Is it a maximum or minimum point? Hint: consider using [tex]x=-b/2a[/tex]. Sh
Based on the symbols and details in the chart, which of the following is the best theme statement for Moby-D1ck? A.)Whaling can be extremely dangerous. B.)Light
Which statement best describes the relationship between humans’ cleanliness and preventing the spread of disease?
I need right answers
How does Poe suggest the importance of logic in this story? The purloined letter?
I’m really stuck on this please help match them I’ll give brainly please help
Y = 1/2 (x-2)² - 4 In Standard form
Write an equation of the line with the given slope and y-intercept: m = negative 5, b = 4