The roots of 9 x 2 + 6x + 1 = 0 are
x = 1/3, 1/3
x = -1/3, 1/3
x = -1/3, -1/3
None of these
Solution of 4 + 11/3x - 5x2 =0
x = 4/3 ior x = -3/5
x = -4/3 ior x = -3/5
x = -4/3 ior x = 3/5
x = 4/3 or x = 3/5
The sum of the squares of two consecutive even numbers is 340. Then the numbers are :
14, 12
14, 16
16, 18
22, 24
x2 - 3x + 6 = 0, the solution is
Length of a field is triple of its breadth and its area is 400m2, then corresponding quadratic equation is
3x - 400 =0
3x2 - 400 = 0
3x2 + 400 = 0
3x2 - 400 =0
The length of Verandah is 3m more than its breadth. The numerical value of its area is equal to the numerical value of its perimeter. Then the dimensions of the verandah are :
Breadth = 3m, length = 6m
Breadth = 4m, length = 7m
Breadth = 5m, length = 8m
Solution of x2 - 2x - 15 = 0 is
x = -5 and x = 3
x = 5 and x = -3
x = -5 and x = -3
Five years ago, a woman’s age was the square of her son’s age. Ten years hence her age will be twice that of her son’s age. Then the age of the son five years ago
5
6
7
10
The root of 2x2 - 7x + 6 = 3 are
x = 1/2, 3
x = -1/2, 3
x = 1/2, -3
A two digit number if such that the product of its digits 12. When 36 is added to this number the digits interchange their places. Then the numbers are :
26
62
34
43
