Quadratic Equations and Radical Equations Quiz

Determine the value of n that makes the polynomial a perfect square trinomial: x² + 8x + n

(hint: think about the completing the square process)

• n = 16

• n = 4

• n = 64

• n = 32

Use the square root property to solve the equation: x² = 9

• x = 3

• x = -3

• x = 3 or x = -3

• x = 9

Factor completely: x² - 4x + 4

• (x - 2)²

• (x + 2)²

• (x - 2)(x + 2)

• (x - 4)(x + 4)

To solve x² + 6x + 5 = 0 by completing the square,

what is the first step?

• Subtract 5 from both sides

• Divide both sides by 6

• Divide 6 by 2, square the result, and add it to both sides

• give up

• x = 1, no

• x = 4, no

• x = 5, yes

• x = 5, no

• x = 4, yes

Solve the equation by using the quadratic formula: 2x² + 5x - 3 = 0

• none of these

Solve the equation by factoring: x² - 9 = 0

• x = -3 or x = 3

• x = -3

• x = 3

• x = 9

• x = -1

• x = 0

• x = 3, x = -2

• x = 5

• x = 8

• x = 1

• No solution as the only solution was extraneous

• x = 1

• x = 2

• x = 3

• x = 4

• x = 5, x = -2