For what value of 'k' does the quadratic equation 4xΒ² - 12x - k = 0 have no real roots?
Anonymous Quiz
22%
k > -9
37%
k < -9
30%
k = -9
10%
k < 9
β€1π₯1π₯°1π€―1
If Ξ± and Ξ² are the roots of xΒ² - 2x + 3 = 0, what is the value of Ξ±Β² + Ξ²Β²?
Anonymous Quiz
17%
4
40%
10
38%
-2
4%
2
π€―1
The quadratic equation whose roots are 5 and -2 is:
Anonymous Quiz
38%
xΒ² - 3x - 10 = 0
32%
xΒ² + 3x - 10 = 0
25%
xΒ² - 3x + 10 = 0
5%
xΒ² + 3x + 10 = 0
π±4π₯°1π€―1π’1
The perimeter of a rectangular field is 82 m and its area is 400 mΒ². The breadth of the field is:
Anonymous Quiz
30%
25 m
41%
16 m
15%
9 m
13%
20 m
π₯°1
The discriminant (D) of the quadratic equation 2xΒ² - 4x + 3 = 0 is:
Anonymous Quiz
18%
8
55%
-8
22%
40
5%
-40
π₯°1
For what positive value of k does the equation xΒ² + kx + 64 = 0 have equal roots?
Anonymous Quiz
25%
8
45%
16
23%
32
6%
64
β€1π€―1
If the discriminant of a quadratic equation is greater than zero (D > 0), the roots are:
Anonymous Quiz
24%
Real and equal
27%
Not real
44%
Real and distinct
5%
Cannot be determined
β€1π€―1
If the roots of the equation axΒ² + bx + c = 0 are reciprocal of each other, then which condition is true?
Anonymous Quiz
20%
a = b
20%
b = c
26%
c = a
34%
a + b + c = 0
β€1π€―1
What are the roots of the quadratic equation xΒ² - 5x + 6 = 0?
Anonymous Quiz
42%
2, 3
28%
-2, -3
21%
2, -3
9%
-2, 3
β€3
π₯°3
If the equation xΒ² - bx + 1 = 0 does not possess real roots, then:
Anonymous Quiz
25%
b > 2
32%
b < -2
31%
-2 < b < 2
11%
b = 2
β€6π1
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