If |x^2 − 12| = x, which of the following could be the value of x?
Choose the correct option.
A) –4  B) –3  C) 1  D) 2  E) 3
Here ONE important point is that LHS is positive, so RHS will also be positive, SO x will be +IVE..   A and B are eliminated..   Now try to substitute remaining choices   C. 1   |x^2 − 12| = x..   |1^2-12|=1.. 11=1.. NO   D. 2   |x^2 − 12| = x..   |2^2-12|=2.. 7=2.. NO   E. 3   |x^2 − 12| = x..   |3^2-12|=3.. 3=3.. Y3S   ANSW3R:3
<result>E</result>
If |x^2 − 12| = x, which of the following could be the value of x?