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 x2 - 6x = 27 is
x = -9 and 3
x = -9 and -3
x = 9 and -3
x = 9 and 3
The product of two consecutive integers is 56. Then the integers are:
-8, -7
-8, 7
8, -7
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
2x2-8 = 0, the solution is
x = + 2
x = -2
x = 2
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
Solution of 3x2 - 24x + 21 =0 is
x = 3 or x = 4
x = 3 or x = 8
x = 1 or x = 7
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
The root of 2x2 - 7x + 6 = 3 are
x = 1/2, 3
x = -1/2, 3
x = 1/2, -3
