x = -½
Using the discriminant of b^2 -4ac = 0 the value of k works out as -2
It can not be factored because its discriminant is less than zero
That factors to (x - 2)(x + 4) x = 2, -4
9x squared plus 16 = 0 factored is plus and minus 4/3 i.
It is: 3x2+6x-11 = 0
63828
It is a quadratic equation.
True because in both equations x = 0 or x = -4
x = -½
4
It is a quadratic equation in the variable x.
If you mean: x2+9x+20 then it is (x+4)(x+5) = 0 when factored
4, -5
3x(2x + 1)
(x + 3)(x + 2)
(2x-4)(x-1) = 0