If 1 is zero of the polynomial p(x) = ax2 – 3(a – 1) x – 1, then the value of 'a' is
(a) 1
(b) -1
(c) 2
(d) -2
If a, ß are zeroes of x2 - 6x + k. What is the value of k if 3a + 2B = 20?
(a) -16
(b) 8
(C) -2
(d) -8
If one zero of 2x2 – 3x + k is reciprocal to the other, then the value of k is:
-2.
-3
(a) 2
(6)
)
3.
(d) -3
2
The number of polynomials having zeroes –2 and 5 is:
(a) 1
(b) 2
(C) 3
(d) more than
22
(b) 3
The value of p for which the polynomial
x3 + 4x2 – px + 8 is exactly divisible by (x - 2) is
(a) 0
(C) 16
(d) 12
-. The quadratic polynomial whose sum of zeroes is 3 and product of zeroes is
(a) x2 + 3x – 2
(b) x2 – 2x + 3
(c) x2 – 3x + 3 (d) x2 – 3x - 2
3. If one of the zeroes of the quadratic polynomial (k – 1) x2 + kx +lis -3, then the
of k is
(c) 2/3
A
(h) 4/3
(0)
2 / 2
Answers
Answer:
1 is zero of the polynomial p(x) = ax2 – 3(a – 1) x – 1, then the value of 'a' is
(a) 1
(b) -1
(c) 2
(d) -2
If a, ß are zeroes of x2 - 6x + k. What is the value of k if 3a + 2B = 20?
(a) -16
(b) 8
(C) -2
(d) -8
If one zero of 2x2 – 3x + k is reciprocal to the other, then the value of k is:
-2.
-3
(a) 2
(6)
)
3.
(d) -3
2
The number of polynomials having zeroes –2 and 5 is:
(a) 1
(b) 2
(C) 3
(d) more than
22
(b) 3
The value of p for which the polynomial
x3 + 4x2 – px + 8 is exactly divisible by (x - 2) is
(a) 0
(C) 16
(d) 12
-. The quadratic polynomial whose sum of zeroes is 3 and product of zeroes is
(a) x2 + 3x – 2
(b) x2 – 2x + 3
(c) x2 – 3x + 3 (d) x2 – 3x - 2
3. If one of the zeroes of the quadratic polynomial (k – 1) x2 + kx +lis -3, then the
of k is
(c) 2/3
A
(h) 4/3
(0)
2 / 2