JEE Math Practice Question
The set of all $$a \in \mathbb{R}$$ for which the equation $$x|x-1|+|x+2|+a=0$$ has exactly one real root, is :
- A.$$(-\infty, \infty)$$
- B.$$(-6, \infty)$$
- C.$$(-\infty,-3)$$
- D.$$(-6,-3)$$
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