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 does Money managers do?
a table with a round top is cut in half so that it can be used against a wall. After it is cut, the edge along the wall is 6 ft. what is the area A of the table
help me please help​
Why does Rosa park believe contributed to her action on December 1 1995?what do other people seem to think contributed and does parks agree
Which term shows how much of 1 quantity is compared to another quantity? a: absolute value b: surface area c: diagram d: ratio
what two numbers add to 4 and when multiplied together equal 5
To the nearest hundredth, what is the sine of the acute angle formed by the line whose equation is y = 3x - 3 and the positive x-axis?
Samuel Gompers started and was President of the American Federation of Labor for many years true or false
Find the volume of a cube with edges measuring 9ce
HELP ASAP!! Carol is going to make a wooden pyramid and then paint it. She drew the net of a square pyramid as shown below to help her plan the project. What sh