Question

which of the binomials below is a factor of this trinomial?
$x^{2}-3x - 4$
a. $x - 4$
b. $x^{2}+4$
c. $x + 4$
d. $x + 8$

Explanation:

Step1: Factor the trinomial

We need to factor \(x^{2}-3x - 4\). We look for two numbers that multiply to \(-4\) and add up to \(-3\). The numbers are \(-4\) and \(1\). So \(x^{2}-3x - 4=(x - 4)(x+1)\)

Answer:

A. \(x - 4\)