If 5, 6, 4, 39, x, 585,
then, find the value of ((x/2) + 1 + 2x)?
52 26 39 97.5 ?
...If 4 10 16 26 x 50
Then find the value of (x² - 1) + ( x² + 1).
...100, 110, ?, 171.6, 240.24, 360.36
43 65 109 197 ? 725
If 2 4 6 x 14 28 30
Then, x³+ 2 x+1 = ?
36, 49, 23, 62, ?, 75
18 434 642 746 798 ?
...12 8 6 12 4.5 15
18 ...
104 156 234 ? 526.5 789.75
...
