The positive root of the equation x2 + 3x - 28 = 0 is
6
5
4
3
The sum of a number and its reciprocal is 26/5. Find the numbers
13 and 2
6 and 1/6
5 and 1/5
3 and 1/3
The discriminant of the equation 6x2 = x + 1
36
25
16
-36
Find the solution of the equation 4x2 + 28x +49 = 0
2/7
7/2
-2/7
-7/2
Form the quadratic equation if the solution are -7 and 3
x2 - 4x + 21= 0
x2 + 4x - 21 = 0
x2 + 4x + 21 = 0
x2 - 4x - 21 = 0
The discriminant of the quadratic equation x2 + 9 = 0 is ____________________
9
18
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
Find the discriminant of the quadratic equation 5x2 + 12x - 9 = 0
224
324
342
424
The roots the equation x2 - 4x - 45 = 0 are ___________
5 and 9
-9 and 5
-9 and -5
9 and -5
The non zero root of 5x2 - 30x = 0 is
-5
-6
