SOLUTION: Factor each polynomial, if possible. x^2-4

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Question 42607This question is from textbook INTERMEDIATE ALGEBRA
: Factor each polynomial, if possible.
x^2-4 This question is from textbook INTERMEDIATE ALGEBRA

Answer by gsmani_iyer(201) About Me  (Show Source):
You can put this solution on YOUR website!

To solve this problem, apply a%5E2-b%5E2=(a+b)(a-b)
Here in the problem,
= x%5E2-4 = x%5E2-2%5E2. So applying the above,
= %28x%2B2%29%28x-2%29 Answer