x2 - 3x + 6 = 0, the solution is
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
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
2x2-8 = 0, the solution is
x = + 2
x = -2
x = 2
None of these
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
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
√3 x2 + 11x + 6 √3 = 0
x = 2 √3 and 3 √3
x = -2√3 and 3√3
x = -2/√3 and -3√3
x = 2/√3 and 3
Solution of x2 - 6x = 27 is
x = -9 and 3
x = -9 and -3
x = 9 and -3
x = 9 and 3
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