Recent content by eskil

The reason why it cannot be negative is that the origin of the problem was to determine the length of all sides of a likesided triangle thus can't be negative. I still think that using the quadratic equation is the simplest way of solving it.

solved it now a2 + a2 = a2 + 2a + 1 simplified it to a quadraticequation 0 = -a2 + 2a + 1 a1 = 1 + sq.root of 2 a2 = 1 - sq.root of 2 a2 is negative therefore a1 is the right answer which gives a = 2,41

i don't believe that (a + 1)(a + 1) is 2a2 shouldn't that give a2 + 2a +1 ??

just looking for a quick solution for my equation, seems like my head is just working the wrong way coz I know it's not a hard one: a2 + a2 = (a + 1)2 a = ?