## Algebra: A Combined Approach (4th Edition)

5$q^{2}$ - 4pq - 5q + 4p group term 5$q^{2}$ - 5q - 4pq + 4p 5q ( q -1 ) -4p( q -1) factor out GCF from each grouping ( 5q - 4p)( q-1)