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Which of the following is a root of the polynomial x^2 - 4?
Practice Questions
Q1
Which of the following is a root of the polynomial x^2 - 4?
-2
0
2
Both -2 and 2
Questions & Step-by-Step Solutions
Which of the following is a root of the polynomial x^2 - 4?
Steps
Concepts
Step 1: Factor the polynomial x^2 - 4 into (x - 2)(x + 2).
Step 2: Set each factor to zero: First, solve x - 2 = 0, which gives x = 2. Then, solve x + 2 = 0, which gives x = -2.
Step 3: The roots of the polynomial are x = 2 and x = -2.
No concepts available.
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