Question

What are the factors of x2 – 4x – 5? Check all that apply. x – 5 x – 2 x – 1 x + 1 x + 2 x + 5What side lengths should be used to model a rectangle with an area of x2 + 3x – 10 square units? x – 5 and x + 2 x – 2 and x + 5 x and x + 3 x + 3 and x – 10

Answer 1

A, D see picture

Explanation:

Answer 2

1. (x - 5), (x + 1)

2. (x + 5), (x -2)

Explanation:

1. x^2 - 4x -5

Find two numbers that both multiple to -5 and add to -4 (-5 and 1)

(x - 5), (x + 1)

2. x^2 - 3x - 10

--same concept for these question

What two numbers multiple to equal -10 and add to equal 3?

5 and -2

(x + 5), (x - 2)