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Do you know the quadratic formula?

The variables should be the same, right?

Agreed.

Good eye.

Good eye? It was blatantly obvious, lol :P

How do you know they shouldn't both be x's?

I think he's being humorous, sakigirl.

can someone just help me? lol. i'm kinda stuck on this question >_<

2r^2-11r+5=0
2r^2-10r-1r+5 = 0
2r(r-5)-1(r-5) = 0
(r-5)(2r-1) = 0
r = 1/2
r = 5

Hero is right.

Nope, I'm faster. The quad formula is whack.

Hahaha!

Mimi uses it because she can't factor :P

Mimi, you forgot to put the line that protects your discriminant :P

what line?

The square root line.....(DUH) :P

wtf..there's nothing wrong :/
You're confusing me :/

lol, just teasing. Don't cry on me :P

HERO. one last question. i beg.

Oh..gawd, confusing a poor kid that just woke up :'(

Here we go again with the "poor little kid" retreat line you always pull :P

You dont have the right to alternate my phrases i said "poor kid" NOT "poor little kid" :P

poor kid = poor little kid
To me it's the exact same thing. A sympathy plea

kwell, I'm just gonna ask. 2c^2+c-10=0

Mimi can use her quad form to help you

i don't remember crap about the quad form hah.

Because Hero is unable to factor it :P

2c^2+c-10=0
2c^2+5c-4c-10 = 0
c(2c+5)-2(2c+5) = 0
(2c+5)(c-2) = 0
c = -5/2, 2

Mimi jinxed me.

lol, i told you that you will make stupid mistakes :P
The factor method is such a FAIL!

Mimi made careless mistakes! :O

Quad Form is an even bigger fail, especially when you depend on it so much Mimi :P

I know about 5 different factor methods

None of which include the dreaded quad form

how would you use the quad form on questions like 25m^2-64=0??

a.k.a binomials.

25m^2 - 64 = 0
25m^2 = 64
m^2 = 64/25
m = sqrt{64/25}
m = plus or minus 8/5

Btw, quadratic formula can only be used for ax^3+bx+c

Oh right, I totally knew that.

ax^2*

Yeah, the quad form is LIMITED

While I was working hard to provide your solution sakigirl. Mimi, started making useless comments

hahah, forgetting the line of the square root. Oh silly her.

I was trying to help her know a better method to solve it which is quicker. I was being nice

I was being nicer :P

whaat? forgettng the line of the square root?

lol

Yeah! and Hero commented on it

lol

lol, sorry to say i think you should scroll up, i never make those carelless mistakes.

you just made one, then auto corrected it. Putting ax^3 , then ax^2. Such silly mistakes :P