Which of the binomials below is a factor of this trinomial?

x2 + x - 20

a.

x - 4

b.

x + 2

c.

x - 2

d.

x + 4

(x-4) is a factor

Step-by-step explanation:

To factor this trinomial , we find out two factors whose product is -20 and sum is +1

Now we use factors 5 and -4

Take out GCF from each group

Factor out x+5

So (x-4) is a factor

1. 3

2. 4

3. 1

hope this ! have a great day.

-wfz