Question

The factorization of x2 + 3x – 4 is modeled with algebra tiles.

What are the factors of x2 + 3x – 4?

(x + 4) and (x – 4)
(x + 3) and (x – 4)
(x + 4) and (x – 1)
(x + 3) and (x – 1)

Answer 1

What are the factors of x2 + 3x – 4?

(x + 4) and (x – 4)

(x + 3) and (x – 4)

(x + 4) and (x – 1) <<<CORRECT

(x + 3) and (x – 1)

Explanation:

Edge Oct 2021

Answer 2

(x+4) and (x-1)

Step-by-step explanation

If you expand (x+4) and (x-1), you end up with x*x which is x^2, x*4 and x*-1 which when added, equal 3x, and 4*-1 which is -4. Therefore, (x+4) and (x-1) is equal to x^2 +3x -4