The positive value x of the equation (2x + 5)2 = 169 is
4
5
13
13/2
Find the value of k for which the equation 4x2 - 12x + k = 0 has equal roots
8
6
7
9
If one solution of the quadratic equation x2 - 10x + 23 = 0 is 5 + √2 the other solution is _______________
√5 + 2
5 - √2
√2
Find the solution of the equation 4x2 + 28x +49 = 0
2/7
7/2
-2/7
-7/2
If there is only one solution of the equation x2 + px + 25 = 0 the values of p are ____________
5 and -5
4 and -4
10 and 15
-10 and +10
The non zero root of 5x2 - 30x = 0 is
-5
-6
The discriminant of the quadratic equation x2 + 9 = 0 is ____________________
36
-36
18
If the equation 2x2 + 3x + k = 0 has only one solution then k = ______________
-9/8
9/8
0
2
If the discriminant of 7x2 + mx = 0 is 9 .The values of m are
7 and -7
3 and -3
4 and 3
0 and 9
Which of the following is a quadratic equation ?
x + 1/x + x4 = 0
x3 - 7x2 + 3x - 5 = 0
3x2 - 5x + 3 = x2 - x + 1
x + 7/x - 3x3 = 0
