------4. Fo what values of x will make the equation x^2 - x- 12 =0 true
A. 3 and 4 B. -3 and -4 C. -3 and 4 D. 3 and -4
-----5. Find the solutions of x^2 -18x + 81=0.
A. 9and 9 B. _9 and -9 C. -9 and 9 D. 9 and -9
------6.What is the natur of roots of the quadratic equation whe b^2 - 4ac is negative.
A. The roots are not real
B. The roots ae irrational and not equal
C. The roots are tational and not equal
D. The roots are rational and equal
------7. What is the value of the discriminant of 3x^2 + 4x + 5 = 0?
A. -76 B. 44 C. -44 D. 76
-----8. Which of the following expression will give the sum of the roots of quadratic equation?
A. -b/a B. c/a C. b^ - 4ac D. x = -b =- square root of b^2 -4ac/2a
------9. What is the sum of the quadratic equation 2x^2 + 5x + 14 =0?
A. -7 B. -3 C. 6 D. 14
-------10. Find the equation whose roots are -5 and 1.
A. x^2 +4x + 5 = 0
B. x^2 -4x -5 = 0
C. x62 - 5x +1 = 0
D. x^2 + 5x + 1 = 0
------11. Find the product of the roots of quadratic equation 2x^ + 11x + 12 = 0.
A. 11 B. -p11 C. 8 D. 2
------12. Determine the equation whose sum and product are 10 and 8, espectively.
A. x^2 + 10x + 8= 0
B. x^2 - 10x - 8 = 0
C. x^2 - 10x + 8
D. x^ + 10x -8 = o
-----13. find the solution set of the equation -2/x + x + 5/ 3 = 2
A. (-3,2) B. (3,-2) C. (3,2)
D. (-3,_2)
-----14. Which of the equation is transformable of
1/3x + 4x/6 = 1?
A. 4x^2 -6x +2 = 0
B. 4x62 ^x +2 = 0
C. 4x62 +6x-2 =
D. 4x^2 -6x -2 =0
-----15. Solve for p: p-2/3 + 4/p = 2?
A. (-2,6) B.(2,-6) C. (2,^) D. (-2,-6)
------16. The sum of two numbers is 27 and thei podduct is 50. What are the numbers?
A. (-2,_25)
B. (2,25)
C.(-2,25)
D. (2,-25)
----17. A rctangular table has an aea of 150m^2 and a perimeter 50m. How long is he table?
A. 9m B. 11m C. 13m D. 15m
-----18. What do you call to the solution of an equation derived from an oiginal equation? However, it is not a solution of the original equation .
A. Algebraic equation
B.Extraneous root
C. Quadatic equation
D. root
-----19. ewrite the expression-2/x + x + 5/3 =2 in standad form of quadratic equation.
A. x^2 -x-6 =0
B.x^2 + x - 6 = 0
C. x^2 + x+ 6 =0
D. x^2 -x + 6 = 0
-----20. Which of the following is the extraneous root of the equation x = 8/x-2 = 1 + 4x /x-2
A. 1 B. -2 C. 5 D.7​