00:01
Okay, we have here then three consecutive integers.
00:04
So that means in general, like 5, 6, 7, 10, 11, 12.
00:10
It could be x is the first one, x plus 1 is the next, and then x plus 2 is the third.
00:19
Those three numbers are consecutive.
00:24
We are told that the product of that, so if i multiply x by xx, plus 1 by x plus 2 what i will get is the middle number which is x plus 1.
00:39
So that equation if i try and solve it i can divide both sides by x plus 1.
00:48
So i divide here by x plus 1 and divide here by x plus 1.
00:56
And on the left i just get x times x plus 2.
01:01
On the right i get just 1.
01:06
So this becomes x squared plus 2x minus 1 equals 0 if i rearrange it.
01:16
So expand out and rearrange...