7
QuizMultiple Choice

Factoring Trinomials: a = 1 (Continued)

Question 7 • Common Core Algebra I B-IC

What is the factored form of x2 − 4x − 5?

Answer
A
(x + 5)(x − 1)
B
(x + 5)(x + 1)
C
(x − 5)(x − 1)
D
(x − 5)(x + 1)

Explanation

To factor x² − 4x − 5, find two numbers whose product is −5 and whose sum is −4. Those numbers are −5 and 1, so the expression factors as (x − 5)(x + 1). This is choice D.

AI-written and checked against the verified answer.

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