What is the discriminant of the quadratic equation ( 3x - 2) 2 = 0 ?
0
9
288
-288
The root of 2x2 - 7x + 6 = 3 are
x = 1/2, 3
x = -1/2, 3
x = 1/2, -3
√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 3x2 - 24x + 21 =0 is
x = 3 or x = 4
x = 3 or x = 8
x = 1 or x = 7
None of these
The sum of the squares of two consecutive even numbers is 340. Then the numbers are :
14, 12
14, 16
16, 18
22, 24
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
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
x2 - 3x + 6 = 0, the solution is
2x2-8 = 0, the solution is
x = + 2
x = -2
x = 2
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
