1) The zeroes of a polynomial 3x 2 -2x-5 are ______________
2) If and are the roots of quadratic equation x 2 +5x+a = 0 and 2 +5= -1
then a is
equal to
3) The graph of y = f(x), where f(x) is a quadratic polynomial meets the
x-axis at A(–2, 0) and B(–3,0), then the expression for f(x) is :
(a) x 2 +5x + 6 (b) x 2 - 5x + 6 (c)x 2 +5x- 6 (d) x 2 -5x– 6
4) The sum and product of the roots of 2x 2 – 5x + 4 = 0are in the ratio :
5) If one zero of the quadratic polynomial x 2 + 3x +k is 2 , then the value
of k is ____
6) If one root of the quadratic equation 4x 2 – 2x + (k-4) = 0 be the
reciprocal of the other, then k = ........
7) If the sum of the zeros of the polynomial f(x) =2x 3 -3kx 2 +4x-5 is 6, then
the value of k is __
8) The product of roots of a quadratic equation +7x-4=0 is
9) If the graph of the polynomial does not intersect x-axis, then the
number of zeroes of the polynomial is
10) If α and β are the zeroes of the polynomial 5x 2 – 7x + 2 ,then
sum of their reciprocals is
Answers
Step-by-step explanation:
he zeroes of a polynomial 3x 2 -2x-5 are ______________
2) If and are the roots of quadratic equation x 2 +5x+a = 0 and 2 +5= -1
then a is
equal to
3) The graph of y = f(x), where f(x) is a quadratic polynomial meets the
x-axis at A(–2, 0) and B(–3,0), then the expression for f(x) is :
(a) x 2 +5x + 6 (b) x 2 - 5x + 6 (c)x 2 +5x- 6 (d) x 2 -5x– 6
4) The sum and product of the roots of 2x 2 – 5x + 4 = 0are in the ratio :
5) If one zero of the quadratic polynomial x 2 + 3x +k is 2 , then the value
of k is ____
6) If one root of the quadratic equation 4x 2 – 2x + (k-4) = 0 be the
reciprocal of the other, then k = ........
7) If the sum of the zeros of the polynomial f(x) =2x 3 -3kx 2 +4x-5 is 6, then
the value of k is __
8) The product of roots of a quadratic equation +7x-4=0 is
9) If the graph of the polynomial does not intersect x-axis, then the
number of zeroes of the polynomial is
10) If α and β are the zeroes of the polynomial 5x 2 – 7x + 2 ,then
sum of their reciprocals is