x y common 1st Diff common product -2 4 -1 1 Type: -2 0 -5 1 common 2nd Diff common ratio -8 2 -11 3 -14 4 x y common product common 1st Diff -2 4 -1 8 Type: DNE DNE 0 -8 1 common 2nd Diff common ratio -4 2 -8/3 3 -2 4 x y common product common 1st Diff 1/9 -2 -1 ⅓ Type: 0 1 3 1 common 2nd Diff common ratio 9 2 27 3 81 4 Type: x y common product common 1st Diff -2 8 -1 3 0 0 -1 1 common 2nd Diff common ratio 0 2 3 3 8 4 x y common product common 1st Diff -12 -2 -24 -1 Type: DNE DNE 0 24 1 common 2nd Diff common ratio 12 2 3 8 4 6 x y common product common 1st Diff -14 -2 -9 -1 Type: -4 0 1 1 common 2nd Diff common ratio 6 2 11 3 16 4 Type: x y common product common 1st Diff -2 4 -1 0 0 -2 -2 1 common 2nd Diff common ratio 0 2 4 3 10 4 x y common product common 1st Diff 0.08 -2 0.4 -1 Type: 0 2 10 1 common 2nd Diff common ratio 50 2 250 3 1250 4 Type: x y common product common 1st Diff -24 -2 -24 -1 -20 0 -12 1 common 2nd Diff common ratio 0 2 16 3 36 4 x y common product common 1st Diff 32/9 -2 16/3 -1 Type: 0 8 1 12 common 2nd Diff common ratio 18 2 27 3 40.5 4 x y common product common 1st Diff -¼ -2 -1 -½ Type: DNE 0 1 ½ common 2nd Diff common ratio ¼ 2 3 1/6 4 ⅛ x y common product common 1st Diff -2 2 -1 2.5 Type: 0 3 3.5 1 common 2nd Diff common ratio 4 2 4.5 3 4 5 Type: x y common product common 1st Diff -2 0 -12 -1 -18 0 -18 1 common 2nd Diff common ratio -12 2 0 3 18 4 x y common product common 1st Diff -3 24 -2 12 Type: -1 6 3 0 1.5 common 2nd Diff common ratio 1 0.75 2 0.375 3 |