Question

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

(x + 5)(x − 1)
(x + 5)(x + 1)
(x − 5)(x − 1)
(x − 5)(x + 1)

Answer 1

For this case we have the following polynomial:
x2 - 4x - 5
Factoring we must arrive at a polynomial of the form:
(x-a) * (x-b)
We have then:
(x-5) * (x + 1)
Answer:
the factored form of x2 - 4x - 5 is:
(x-5) * (x + 1)
option 4