The polynomial 2x3 − 5x2 + 4x − 10 is split into two groups, 2x3 + 4x and −5x2 − 10. The GCFs of each group is then factored out. 
 What is the common binomial factor between the two groups after their GCFs have been factored out?
 2x + 5
 2x − 5
 x2 − 2
 x2 + 2