Completing the Square

Solve: x² - 2x = 3

(just give the POSITIVE answer)

Mathematical Equivalence

OFF

When factoring
x² - 4x + 4 = 20,
what goes in the blank?
(x - __ )² = 20

• 4

• 2

• 8

• 20

What value of c would make this a perfect sqaure trinomial?
x² +8x + c

• 4

• 16

• 64

• -16

What value of c would make this a perfect square trinomial?
x² + 2x + c

• 2

• 4

• -2

• 1

Complete the Square
x² + 6x = 5

• (x + 3)² = 5

• (x + 6)² = 9

• (x + 3)² = 14

• (x + 6)² = 14

Find the value of "c" that completes the square. x_{ }^2+8x+c

• -4

• 4

• 8

• 16

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

• 28

• 14

• 196

• 56

Complete the square.
x² + 6x + ____

• x² + 6x + 9

• x² + 6x - 36

• x² + 6x + 36

• x² + 6x - 9

Complete the Square
x² + 10x + ____

• x² + 10x - 100

• x² + 10x + 100

• x² + 10x - 25

• x² + 10x + 25

Solve the following equation by completing the square:
n² - 2n - 3 = 0

• {3 and-1}

• {4 and -4}

• {5 and -3}

• {8 and -7}