Page 1 of 1
en veldig lett likning
Posted: 30/03-2006 15:14
by christer sol
(2x - 1)2 + 1 = 3 - (4x - 3)(2 - x)
Posted: 30/03-2006 15:37
by Solar Plexsus
(2x - 1)2 + 1 = 3 - (4x - 3)(2 - x)
4x - 2 + 1 = 3 - (8x - 4x[sup]2[/sup] - 6 + 3x)
4x - 1 = 3 - 8x + 4x[sup]2[/sup] + 6 - 3x
4x[sup]2[/sup] - 15x + 10 = 0
x = (15 - [symbol:rot]65)/8 eller x = (15 + [symbol:rot]65)/8.
likning ja
Posted: 30/03-2006 15:49
by christer
(2x - 1)(2x - 1) + 1 = 3 - (4x - 3)(2 - x)
sånn skal den starte bare den tingen her som ikke oppfattet i 2..
Posted: 30/03-2006 15:58
by Solar Plexsus
(2x - 1)[sup]2[/sup] + 1 = 3 - (4x - 3)(2 - x)
4x[sup]2[/sup] - 4x + 1 + 1 = 3 - (8x - 4x[sup]2[/sup] - 6 + 3x)
4x[sup]2[/sup] - 4x + 2 = 3 - 8x + 4x[sup]2[/sup] + 6 - 3x
7x = 7
x = 7/7
x = 1.
Posted: 30/03-2006 16:00
by christer
takker for din hjelp somhet..
;)