INSTRUCTIONS: Find out how much you already know about this module Choose the letter that you think best answers the question. Write the CAPITAL letter of your answer before each item. 1 1 1
1. The equation (x-2)2 + 1 = 2x3 is
a. Linear equation
b. Cubic equation
c. Quadratic equation
d. Bi-quadratic equation
2. The roots of the quadratic equation 6x2 - X-2 = 0 are
a. 2/3, 1/2
b.2/3, -1/2
c. -2/3, 1/2
d. -2/3, -1/2 -
3. The roots of 2x2 - 14x + 24 = 0 are
a. {-4, -3)
b. {-4,3)
c. [4, 3}
d. {4,-3)
4. The Quadratic equation whose roots are 1 and 2
a. 2x2 + x-1 = 0
b. 2x2-3x + 1 = 0
c. 2x2-3x - 1 = 0
d. 2x2 + x + 1 = 0 -
5. The sum of the roots of the quadratic equation 3x2 - 9x + 5 = 0 is
a. 3
b.-3
c.6
d. 2
6. If one root of the quadratic equation 2x2 + kx-6 = 0 is 2, the value of k is
a. 1
b. 2
c.-1
d.-2
7. The roots of the quadratic equation 7x2+x-1 = 0 are
a.real and distinct
b.real and equal
c.not real
d. none of these
8. The equation 12x2 + 4x + 3 = 0 has real and equal roots, if
a. k = (-3, +3}
b.K = (-4, +4}
c.k = {-9, +9)
d. k= (-2, +2}
9. If -5 is a root of the quadratic equation 2x2 + px - 15 = 0, then
a. p = 3
b. p = 7
c.p = 5
d. p = 1
10. The sum of the squares of two consecutive natural numbers is 313. The numbers are
a. 12, 13
b. 13, 14
c.11, 12
d. 14, 15
11. Which of the following are the roots of the quadratic equation, x2 - 9x + 20 = 0 by factoring?
a.3,4
b. 5, 6
c. 4,5
d. 6,1
12. If (1-P) is a root of the equation x2 + px + (1-P) = 0, then roots are
a. 0,1
b. 0, -1
c. -1,1
d. -1,2
13. (x2 + 1)2 - x2 = 0 has
a. four real roots
b.no real roots
c.two real roots
d. one real root
14. If x = 2 is a solution of the equation x2 - 5x + 6k = 0, the value of k is
a. 3
b. 2
c.4
d. 1
15. If (x-a) is one of the factors of the polynomial ax2 + x + then one of the roots of ax²+bx+c=0 is
a. 1
b.c
c.a
d. none of these


needed asap
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