## Algebra 1: Common Core (15th Edition)

(2d+1)($3d^{2}$-5)
$6d^{3}$+$3d^{2}$-10d-5.Factor out: You have four terms so group the first two and last two terms: ($6d^{3}$+$3d^{2}$)-(10d-5.) The GCF for the first group is $3d^{2}$ and for the second group it is -5: $3d^{2}$(2d+1)-5(2d+1) You have 2d+1 in common so group it by itself: (2d+1)($3d^{2}$-5)