Factor the following expression using the GCF: 2dr - 4r.

2r (d-2)

Step-by-step explanation:

1. 2 and r are both factors of the monomials 2dr and - 4

2. Put it as 2r and divide each monomial and put it into parentheses.

3. 2dr/2r is "d" while - 4r/2r is - 2 since the r cancels out

3. After your done dividing each term b your GCF multiply your GCF to whatever is in the parentheses. 2r: GCF (d-2) : Factors

2r (d-2)