6. In the quadratic equation 3x2 - 1 = 0, what are the values of a, b and c?
A. a= 0, b=3, c = -1
B. a= 3, b=0, C= -1
C. a= -3, b= 0, C =-1
D. a= 3, b= 0, c=1
7. What is the nature of the roots of a quadratic equation if the value of the discriminant is 0?
A. Roots are real but unequal
C. roots are real and equal
B. Roots are irrational and
D. no real roots
8. What is the discriminant of a quadratic equation?
A. b2 - 40
B. b2-4a
C. b2 - 4ac
D. b? + 4ac
9. What is the sum of roots of quadratic equation x2 + 6x - 14 = 0?
A. -7
B. -6
C. -3
D. 1 10. Find the product of roots of quadratic equation x2 + 6x - 14 = 0.
A. -14
B.6
C. -3
D.1
11. It is the standard form of the quadratic equation (x+4) (x-3) = 0
A. x2 + 7x -12= 0
B. x2-x-12=0
C. x2 + x +12=0
D. x² + x -12=0
12. Which of the following rational equations are transformable into quadratic equations? W+2 29-1 39
A.
C. 7
B. = 3
D. W+1 = 7 4 3 2 2 - + P 1 + - = 2 2 3 4 + m-2 m+2 x-3 P+1 m 6 X 4 D. 8x 6 x-3 x 4
13. What is the LCM of the rational algebraic equation-+*= 2?
Α. Χ
B.4
C. 4x
. 8×
14. Which of the following is the standard form of + = 2?
A. x2 + 11x - 24 = 0
B. x2 - 11x + 24 = 0
C. x2 + 11x + 24 = 0
.ײ -11× -24=0
15. What are the roots of = 2?
A. -3,8
B. 3,-8
C. 3,8
D. -3, -8​