Math pre college algebra help
Favorites|Homepage
Subscriptions | sitemap
HOME > > Math pre college algebra help

Math pre college algebra help

[From: ] [author: ] [Date: 12-12-08] [Hit: ]
p.s.......
Factor

z^2 + 4z - 12

-
z^2 + 4z - 12

(z+6)(z-2)

if you cannot see factors
use the quadratic formula

first, the discriminant
b^2-4ac
16+48
64
+/-8

rest of q.f.
(-b+/-8)/2a
(-4+/-8)/2

4/2,-12/2
2, -6

extract the factors
set the factors equal to the variable
then solve for 0
z=2
z-2=0
(z-2)

z= -6
z+6=0
(z+6)

(z+6)(z-2)

p.s.
you can solve for circles as well

-
(z + 6)(z - 2)

-
z^2 + 4z - 12
(z + 6) (z - 2)
1
keywords: pre,algebra,college,help,Math,Math pre college algebra help
New
Hot
© 2008-2010 http://www.science-mathematics.com . Program by zplan cms. Theme by wukong .