If x2 + 4 = 0, then x ?
-
A.
4 -
B.
-4 -
C.
2 -
D.
-2 -
E.
None of the above
Correct Answer: Option E
Explanation
x2 + 4 = 0
x2 = -4
You can’t apply a square root to a negative number. So the answer is None of the above.
If x2 + 4 = 0, then x ?
x2 + 4 = 0
x2 = -4
You can’t apply a square root to a negative number. So the answer is None of the above.