Find the value of p so that px2 - 8x + 4 = 0 has equal roots
3
4
5
6
Find the value of m such that 2mx2 - 40x + 25 = 0 has equal roots
8
12
-6
The discriminant of the quadratic equation x2 + 9 = 0 is ____________________
36
-36
9
18
The area of a triangle is 30cm2. Find the base are, if the altitude exceeds the base by 7 cm
7
-5
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
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
Find the discriminant of the quadratic equation 5x2 + 12x - 9 = 0
224
324
342
424
The positive root of the equation x2 + 3x - 28 = 0 is
The non zero root of 5x2 - 30x = 0 is
If the equation 2x2 + 3x + k = 0 has only one solution then k = ______________
-9/8
9/8
0
2
