anyone besides satellite i want to see how to factor quadratics over real numbers ( not just the integers)
without using the quadratic formula or without using completing the square

Question

myininaya · Answer

an easy quadratic

myininaya · Answer

http://openstudy.com/groups/mathematics#/groups/mathematics/updates/4e3a5e000b8bf47d066015a8 here are some examples here

anonymous · Answer

Impressive...pure mathematician in the making:-)

myininaya · Answer

$$ax^2+bx+c$$
you want to find two factors of a*c that have product a*c and have sum b
so 
we have
b=(b/2+z)+(b/2-z)
a*c=(b/2+z)(b/2-z)=b^2/4-z^2 <- solve this for z

myininaya · Answer

then replace bx with (b/2+z)x+(b/2-z)x
then factor by grouping :)

myininaya · Answer

thanks estudier :)

anonymous · Answer

U shouldn't give medal, no-one will come to the post:-)

Delete it and post it again.

myininaya · Answer

delete this thread?

anonymous · Answer

You can copy the replies into the new one, don't give any medals, then people will come to look.

anonymous · Answer

People should see your method...

myininaya · Answer

lol estudier 
copy the replies from the link above into this link?
i'm sorry im a retard

anonymous · Answer

I will do it for u (will be fun, I hope..)

myininaya · Answer

lol thanks

myininaya · Answer

thanks estudier your awesome
sorry im slow

myininaya · Answer

http://openstudy.com/groups/mathematics#/groups/mathematics/updates/4e3a98220b8bf47d066028cf