The roots of the equations x2 + 16x + 63 = 0
=> x2 + 9x + 7x + 63 = 0 => x(x + 9) + 7(x + 9) = 0 => (x + 9) (x +7) = 0 => x = -9, -7
72, 36, 54, 135, 470.5, 2126.25
91 96 105 121 143 176
1024, 1056, 1096, 1144, 1196, 1260
17, 42, 58, 66, 71, 72
48, 112, 144, 192, 310, 732
640 1920 240 720 92 270
12, 220, 322, 376, 402, 415
96, 120, 180, 315, 472.5, 1417.5
81, 154, 124, 197, 167, 235
26, 38, 60, 110, 206, 398
