Quadratic Equations Completing the Square

Complete the square for
x² + 12x + ____

• x² + 12x + 144

• x² + 12x + 36

• x² + 12x - 36

• x² + +12x - 144

When do you use the plus or minus symbol?
±

• After taking the square root of both sides

• After adding the square to both sides

• After taking half of b

• After setting the equation equal to zero

What is one of the solutions to this equation?
(2x - 1)² = 49

• 7

• -7

• -4

• -3

What do you do to the b value to correctly complete the square?

• square it

• divide it by 2 and square the result

• divide it by 2 and take the square root of the result

• divide it by 2 only

Complete the square.
x² + 6x + ____

• x² + 6x + 9

• x² + 6x - 36

• x² + 6x + 36

• x² + 6x - 9

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

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

• -4

• 4

• 8

• 16

• 28

• 14

• 196

• 56