Question
Question: The roots of the equation \|x\|<sup>2</sup> + \|x\| – 6 = 0 are –...
The roots of the equation |x|2 + |x| – 6 = 0 are –
A
Only one real no.
B
Real & sum = 1
C
Real & sum = 0
D
Real & product = 0
Answer
Real & sum = 0
Explanation
Solution
(|x| – 2) (|x| + 3) = 0
i.e. |x| = 2, – 3
|x| = 2, |x| ¹ – 3 (not possible)
Ž x = ± 2
i.e. sum = 0