Question

If $x_1$ and $x_2$ are the values of x satisfying the equation |x| = 6, then $x_1$ + $x_2$ = ,then

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Answer 1

|x| = 6 means x = 6 or -6

For both 6 and -6, |x| = 6 (|x| is the distance from origin)

$\Rightarrow$ $x_1$ + $x_2$ = 6 + (-6)

= 0