# need help with math! (solved)

•
20 May 2012, 22:29
•
Journals

its been ages since i last had math..

so can anyone explain to me how i solve:

x² + 10x +24 = 0

Thanks guys, i understand it now.. simple stuff..:)

so can anyone explain to me how i solve:

x² + 10x +24 = 0

Thanks guys, i understand it now.. simple stuff..:)

x=-4

x1 + x2=-b (-10 in this case)

x1 x x2= c (24 in this case)

So, you can kinda guess the x1 and x2, by looking at it

x1 x x2 = c/a

anyway ur right, here a=1 so it doesnt make any differnce

x = -6 => 36 - 60 + 24 = 0

x = -4 => 16 - 40 + 24 = 0

on a sidenote, I guess you forgot the important rule that L =|= {0}

( x - 6 ) ( x - 4 ) = 0

x = 6 , x = 4

D = B² - 4AC= 4

X1,2= (-B+-V(D))/2A

X1 = -4

X2 = -6

imo its great site if you have any math prob

naja egal ;) hamburg halt

imagine u got like a polynome ax²+bx+c=0

Shizzle = b² - 4 ac

shizzle > 0 ->

x1 = (-b+shizzle^1/2)/2a

x2 = (-b-shizzle^1/2)/2a

Shizzle = 0 ->

x=-b/2a

shizzle<0 -> no solution for real numbers

np4gangstacis

hope u understand all dat shizzle

im good at language stuff but math is like cancer