Quadratic Equations

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Quadratic Equations - Topic Wise Multiple Choice Questions (MCQ)

Topic Wise Quadratic Equation MCQ for competitive exam Practice Multiple Choice Questions for Engg Bank JEE CET Entrance Online Test



1 )

If 81 is the discriminant of 2x2 + 5x – k = 0 then the value of k is_________

5
6
7
-7


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2 )

Discriminant of the quadratic equation √5x2 – 3√3x – 2√5 = 0 is_______

74
-74
67
-67


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3 )

The value of k for which the quadratic equation k x2 + 1 = k x + 3 x – 11 x2 has real and equal roots are

{– 11, – 3}
{5, 7}
{5, – 7}
{– 5, – 7}


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4 )

If the sum of the roots of ax2 + bx + c = 0 is equal to the sum of the squares of their reciprocals then bc2, ca2, ab2 are in

A.P
G,P
H.P
None of these


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5 )

If the equation x2 – m (2x – 8) – 15 = 0 has equal roots then m = ________

3, – 5
– 3, 5
3, 5
– 3, – 5


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