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Question

Sum of the real roots of the equation x2 + 5 |x| + 6 = 0

A
Equals to 5
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B
Equals to 10
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C
Equals to - 5
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D
None of these
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Solution

The correct option is D None of these
The following cases will arise
Case 1: x > 0
x2 + 5x + 6 = 0
On solving we get x = -2, -3 which is not possible as x > 0.
Case 2: x < 0
x2 - 5x + 6 = 0
On solving we get x = 2, 3 which is not possible as x< 0.
So no real root is possible. Option (d) is correct.


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