163,840,000,000 406 = 40 x 40 x 40 x 40 x 40 x 40 = 4,096,000,000.
Some multiples of 40 are: 2 x 40 = 80 3 x 40 = 120 4 x 40 = 160 5 x 40 = 200 6 x 40 = 240 7 x 40 = 280 8 x 40 = 320 9 x 40 = 360 10x 40 = 400
-x^2 -13x -40 = -(x^2 + 13x + 40) = -(x + 5)*(x + 8)-x^2 -13x -40 = -(x^2 + 13x + 40) = -(x + 5)*(x + 8)-x^2 -13x -40 = -(x^2 + 13x + 40) = -(x + 5)*(x + 8)-x^2 -13x -40 = -(x^2 + 13x + 40) = -(x + 5)*(x + 8)
1 x 40 = 40 2 x 20 = 40 4 x 10 = 40 5 x 8 = 40
40/x
1 x 40, 2 x 20, 4 x 10, 5 x 8 = 40
40 = 1 x 40 40 = 2 x 20 40 = 4 x 10 40 = 5 x 8
x + 3x = 40 4x = 40 x = 10.
x/7 = 40 Therefore, x = 7 x 40 x = 280
-40
x = 40
If x squared = 40 then x = square root of 40 = +/- 6.3255555