2007-10-27 17:49:33 · 6 answers · asked by +-+-+-+-+- 4 in Science & Mathematics ➔ Mathematics
@Amanda & Kamal: of course it's easy but can you give details?
2007-10-27 18:05:58 · update #1
The numbers are 69, 71, and 73, so the answer is 69.
The cube root of 357,627 is slightly less than 71. It seems that 69 x 71 x 73 is a possible product. The result can be verified. Note that 9 x 1 x 3 = 27, thus making the last digit a 7, which is a good visual check.
Alternatively, solve a cubic equation by setting up a product of successive odd numbers, say, x-2, x, and x+2 as Sneeze has pretty much started for you. Do you need more details?
2007-10-27 17:54:43 · answer #1 · answered by Anonymous · 2⤊ 0⤋
It helps immensely to first find the factors of 357627.
These are : 3 * 23 * 71 * 73.
Seeing that 3 * 23 = 69, gives the answer immediately.
2007-10-27 18:27:23 · answer #2 · answered by falzoon 7 · 1⤊ 1⤋
well ...if you call the middle number x, then
(x-2)*(x+2)*x = 357 627
(x^2 -2)*x = 357 627
x^3 - 2x = 357 627
now let me point out that I'm only 15!!!
im sorry i cant prove it, but let me point out the cube root of 357 627 is 70.something, so you perhaps could use that
sorry!!
2007-10-27 18:15:32 · answer #3 · answered by ღ♥ღ latoya 4 · 0⤊ 0⤋
x(x + 2)(x + 4) = 357627
x(x^2 + 6x + 8) = 357627
x^3 + 6x^2 + 8x = 357627
using quickmath.com
x = 69
2007-10-27 20:13:27 · answer #4 · answered by Sherman81 6 · 0⤊ 1⤋
69
=)
2007-10-27 17:51:45 · answer #5 · answered by Kamal 2 · 1⤊ 0⤋
(2x + 1) + (2x + 3) + (2x + 5) = 357627
6x = 357618
x = 59901
Nos. are 119,803, 119,805, 119,807
2007-10-28 01:34:58 · answer #6 · answered by Como 7 · 2⤊ 1⤋