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
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 product of two consecutive integers is 56. Then the integers are:
-8, -7
-8, 7
8, -7
None of these
Solution of x2 - 2x - 15 = 0 is
x = -5 and x = 3
x = 5 and x = -3
x = -5 and x = -3
Solution of x2 - 4x - 5 = 0 is
x = -5 or x =1
x = 5 or x = 1
x = 5 or x = -1
x = -5 or x = -1
The sum of the squares of two consecutive positive numbers is 41. What is the smaller number ?
4
-5
-4
Solution of x2 + 6x -10 = 0 is
2x2-8 = 0, the solution is
x = + 2
x = -2
x = 2
x = -2/5 or x = -3/2
x = 2/5 or x = -3/2
x = -2/5 or x = 3/2
x = 2/5 or x = 3/2
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
