What are the factors of x² − 5?
- (x − 5)(x + 1)
- (x − √5)(x + √5)
- (x − 2)(x + 3)
- (x − 1)(x + 5)
Explanation
What are the factors of?
We use the identity:
a^2−b^2=(a−b)(a+b)
x^2−5=x^2− √5
(x − √5)(x + √5)
Last updated NA 13-04-2026
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