Which is the complete factorization of this expression? −20x−5y

−5(4x−y)

4(5x−y)

−5(4x+y)

5(4x+y)

The correct complete factorization of the expression −20x−5y is −5(4x+y).

To find the complete factorization of the expression −20x−5y, we need to factor out the greatest common factor (GCF) from the terms of the expression. The GCF of −20x and −5y is −5. So, the factorization is:

−5(4x+y)

To find the complete factorization of the expression −20x−5y, we need to factor out the greatest common factor from both terms. In this case, the greatest common factor is −5.

First, factor out −5 from both terms of the expression:
−5(4x) − 5(-y)

This gives us:
−5 * (4x − y)

Therefore, the correct complete factorization of the expression −20x−5y is −5(4x−y).