1.What number must be added to x² + 2x + to make it a perfect square trinomial?
a. 1

b. 2

c. 3

d. 4

2.What is the value of the discriminant in the equation 10x²5x = -9?
a. 335

b.-335

c. 385

d. -385

3.Which of the following mathematical statements is a quadratic inequality?
a. 2m² +3m-4 = 0

b. 8b>14

c. 4t²-5

d. c²-9=0

4.What is the vertex of the equation 2(x - 3)² + 8?
a. (–3, 8)

b. (3, 2)

c. (3, 8)

d. (–3, 2)

5.Find the product of the roots of the equation 2x² + 3x - 2 = 0
a. ½

b. - ½

c. -1

d. 1

6.The sum of the roots of a quadratic equation is –9. if one of the roots is –5, what is the other root? *
a. 5

b. –5

c. –4

d. 4


7.The length of the wall is 12 m more than its width. If the area of the wall is less than 45 m^2, which of the following could be its length? *
a. 3 m

b. 4 m

c. 15 m

d. 16 m

8.Given the equation y = -2x², what is the opening of its parabola?
a. Upward

b. Downward

c. left

d. right

9.What is the nature of the roots of the quadratic equation if the value of its discriminant is zero? *
a. The roots are not real.

b. The roots are rational and not equal.

c. The roots are irrational and not equal.

d. The roots are rational and equal.

10.The roots of quadratic equation are –7 and + 2. Which of the following equations has these roots? *
a. x²5x-14 = 0

b. x² + 5x-14 = 0

c. x²5x +14 = 0

d. x² + 5x +14 = 0

11.Find the solutions of x² - 6x = 27 by factoring.
a. 9 and 3

b. –9 and –3

c. 9 and –3

d. –9 and 3

12.Find the roots n²-9=0
a.±3

b.±4

c.±5

d.±6

13.The value of the discriminant in the quadratic equation 4r² + 10r + 15 = 0 is______.
a. –140

b. 140

c. 100

d. –100

14.Find the roots of the equation is ²+4=0
a.±2

b.2

c.-2

d.It has no roots.

15.What is the standard form of (x+2) (x-3) =0? *
a. x²-x-6=0

b. x²+x-6=0

c. x²-6=0

c. x²-6=0

d. x² + 6x-6=0

16.This is the value of the expression b^2 - 4ac in the quadratic formula. *
a. Irrational roots

b. discriminant

c. rational roots

d. solution

17.What is the degree of quadratic equation? *
a. 0

b. 1

c. 2

d. 3

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