When a + b + c = 0, then the quadratic equation $3ax^{2}+2bx+c=0$ has :

When a + b + c = 0, then the quadratic equation $3ax^{2}+2bx+c=0$ has :
1). Imaginary roots
2). At least one root in [0, 1]
3). One root in [-2,-1] and other root in [2, 3]
4). One root in [-2, -1] and other root in [1, 2]

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