Question

What is the factored form of x2 - 4x – 5?
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(x + 5)(x - 1)
(x + 5)(x + 1)
(x - 5)(x - 1)
(x - 5)(x + 1)

Answer 1

Answer:

(x - 5)(x + 1)

Step-by-step explanation:

${x}^{2} - 4x - 5 \\ = {x}^{2} - 5x + x - 5 \\ = x(x - 5) + 1(x - 5) \\ = (x - 5)(x + 1)$

Answer 2

Answer:

I think that the answer is D