Directions: Read each item carefully then write the letter of the best answer on a
sheet of paper.
A. 1. A second degree equation of the form ax² + bx + c = 0, where a, b and c
are real numbers and a 0 is called
A. linear equation
B. linear inequality
C. quadratic equation
D. quadratic inequality
2. Which of the following does not represent a quadratic equation?
A. 10x 3 = 4x²
B. x² - 24=0 C. 4x+3=10 D. (3x+1)(x+3)= 9
3. Which of the following quadratic equations is expressed in standard form?
A. 8x23x+1=0 B. 7x²+4=11 C. 2x2 = 8
D. (x-5)=4
4. Which of the following quadratic equations has the roots ±8 ?
B. 2x²- 64=0 C. x2 = 128
A. x²-16=0
D. x²-27=37
5. Which of the following is best solved using extracting square root method?
A. x²+4x+5= 0 B.7x² = 10x C. x²+6x=0
D. x² = 81
6. The number to be added to make the left side of the equation 5x2 - 10x = 15 a
perfect square trinomial is
-
4
C. 25
= 0 as a square of a binomial.
A. 1
B. 5
7. Express the left side of x2 3x +
9
A. (x-2)² = 0
B. (x + 2)² = 0
C. (x-2)² = 0
8. Which of the following is the solution of the quadratic equation 2x² + 5 = 8x?
8±√√5
A. x =
2
4±√6
B. x =
2
C. = 8±√2
10
D. 225
D. (x + 2)² =
0
8±√√6
D. =
4
9. Which of the following represents the values of a, b, and c, respectively in the
quadratic equation 2x² + 5 = 8x?
A. 2, 5, 8
B. 2, 5, -8
C. 2, 8, 5
5
10. The values of a, b, and c in the equation x² + 3x - 1½ = 0 are
A. a 2, b = 5, c = -3
B. a6, b = -15, c = 2
2
=
3
D. 2, -8, 5
C. a 15, b = -6, c = 3
D. a 6, b = 15, c = -2
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