Quadratic Equations by Factoring Quiz

What is the result of factoring the expression x^2 - 49 using the difference of perfect squares?

• x + 7, x - 7

• x + 49, x - 49

• x^2 + 49

• x^2 - 7

What is the square root of 64 used in the factoring process?

• 16

• 64

• 6

• 8

What is the greatest common factor (GCF) used to simplify the equation 3x^2 - 75 = 0?

• 75

• 15

• 5

• 3

What values of x are obtained when setting the factors x + 5 and x - 5 to zero?

• x = 5, x = -5

• x = 25, x = -25

• x = 0

• x = 5, x = 5

After factoring the trinomial x^2 - 2x - 15, what are the possible values of x?

• x = 3, x = -5

• x = 15, x = -2

• x = 2, x = -15

• x = 5, x = -3

What is the result of factoring the expression 9x^2 - 64?

• 3x + 8, 3x - 8

• 9x + 64, 9x - 64

• 9x^2 + 64

• x^2 - 8

What two numbers multiply to -120 and add up to 2, used in the advanced factoring of a trinomial?

• 12 and -10

• 120 and -1

• 10 and 12

• 15 and -8

How do you solve the equation 2x + 3 = 0 using the quadratic formula?

• x = -3/2

• x = 3/2

• x = 0

• x = 2/3

Using the quadratic formula, what is the value of x for the equation 8x^2 + 2x - 15 = 0?

• x = 15/2, x = -2/8

• x = 4/5, x = -2/3

• x = 2/15, x = -3/5

• x = 5/4, x = -3/2

What is the discriminant in the quadratic formula for the equation x^2 - 2x - 15?

• 64

• 4

• 15

• -15