Algebra-1

Question Analysis
This question tests the understanding of even roots and negative exponents. Specifically, it checks whether students recognize that even roots of negative numbers are undefined in the real number system.

Key Concept Explanation
In the real number system, even roots (such as square roots) of negative numbers are undefined because there is no real number that, when squared, results in a negative number.

Step-by-step Solution
1. Identify the base and the root: The base is -49, and the root is 2 (square root).
2. Check the base: The base is negative, and the root is e...