Completing the Square Algebratiles

Complete the square for the equation:

Complete the square for the equation:

Solve the following quadratics equation by completing the square... x² + 4x + 1 = 0

• x = -2 ± √3

• x = -3 ± √2

• x = 2 ± √3

• x = 2 ± √2

Solve the following quadratics equation by completing the square...

x² + 12x + 8= 0

• x = -6 ± 2√7

• x = 6 ± 2√7

• x = 28 ± √6

• x = -28 ± √6

Find the missing value "c" to complete the square.

x² + 6x + ____

• 9

• 12

• 36

• - 9

What is the first step to solve this quadratic equation by completing the square? x^2-10x+21=0

• Set the equation equal to zero

• Divide 10 by 2 and add the result to both side

• Subtract the 21 from  both sides

What did you need to add to both sides to complete the square?

• 6

• 36

• 10

• 144

Find the value of "c" that completes the square.

• -121

• 121

• 11

• -11

Find the value of "c" that completes the square. Then rewrite the trinomial as a perfect square.

Find the value of "c" that completes the square. Then rewrite the trinomial as a perfect square.