math help

[Yodums]

No, I broke it down for him. I used a formula generator on a math board to generate those formulas.

[SiLover]

IC good work man!!!

[Si_Chick]

Originally Posted by Yodums

No, I broke it down for him. I used a formula generator on a math board to generate those formulas.

[CZ-75]

Originally Posted by SiLover

20x^2-20x-15

(10x-15)(2x+1)

x=15/10 or 3/2
x = -1/2

DOOD are we going to do all of your HW for ya!!!!

Would there be a reason why 5(2x + 1)(2x -3) doesn't work?

[Yodums]

Yep, that'll work. All you're doing is continuing to simplify one bracket, but you will still get the same answers for x as you originally would. The 5 has no significance when you're trying to find the zeroes/x intercept. Set each bracket equal to zero.

2x + 1 = 0
x = -1/2

2x - 3 = 0
x = 3/2

[firmhonda]

This thread is rediculous.. honda06si, you just need to get yourself a texas instruments TI-freakin sweet and do the damn deal. I've got a ti-89 titanium and it's got me through 2 classes (on the 3rd now).

[CaliGuy]

I am so F*cking glad I'm done with college!!!!

[CaliGuy]

Originally Posted by firmhonda

This thread is rediculous.. honda06si, you just need to get yourself a texas instruments TI-freakin sweet and do the damn deal. I've got a ti-89 titanium and it's got me through 2 classes (on the 3rd now).

I would have never, never, never, never passed my college math courses without a TI-83 and I forget the other one...Good Calculator=

[darna]

i envy you people...



i'm miserable at math...

[firmhonda]

Originally Posted by darna

i envy you people...



i'm miserable at math...

trust me, so am I. That's why I never leave home without my TI - freakin sweet. Literally. It's in my backpack on my back seat right now . Matter of fact, I have class tomorrow and I need to do some homework.

[Relentless00]

Math is tha shit, Im really good at it and am taking a senior level course as a sophomore..... This stuff is really easy but at the beginning of the year I forgot it to, so now worries. I would explain but everyone has already said what I would have

[honda06si]

Originally Posted by Yodums

You should get the concept down first, rather than doing it by trial and error.

The first step would be to make sure the equation is correctly arranged, beginning with the highest degree and ending in a constant (if necessary).



You'll notice the first term is the highest degree and it's in a descending order where c is just some constant with no variable attached to it. For this particular example, there is no coefficient (number) in front of the first term, so your factor would look something like this (k is some constant/number):





Both brackets will begin with the variable, x.

Next, the k's or constant will:

1) Have a product (multiply) equal to c (refer to the first diagram - last/third term).
2) Have a sum (added together) equal to whatever bx is (second term of the first diagram).

To make it a little easier, let's use an example with numbers:



What two numbers:

1) Multiply together to give you positive 6
2) Add together to give you negative 5?

Answer is -3 and -2. Since there is no coefficient in front of the first term, you can just stick it in the brackets and go away with it:



If there's a constant in front of the first term which has the highest degree, then you will have to go through a method of trial and error.

For example:



There's a 3 in front of the term with the highest degree, so we can't apply what I initially wrote.

Instead your brackets would look like:



a * c = 3x^2 -----> The first term in the original equation
b * d = 2 ---------> The third term in the original equation

When figuring out numbers, the "bx" term no longer matters.

So what choices do we have for a and c? 3 is a prime number, so it has to be 3 * 1.



The next step would be finding the second terms of both brackets that would give you 2. Let's try -2 and -1.



Well, it didn't work... the method is called trial and error, so let's try switching positions of the -2 and -1 from each bracket:



I hope that helps. Again, get the concept down and then do problems. It would be a mere waste of time to just swap numbers in and out till they work.

You must spread some Reputation around before giving it to Yodums again.

[Yodums]

I really liked algebra and calculus, so I don't mind going over it. You learn best when teaching it anyways. I'm presently taking some probability and statistic courses and I would hardly consider them math courses.

If you have any more questions, then just post them up. Math is not something you want to be behind in.

[honda06si]

yea i know...i had an assignment due at 11:59 in math, i finished half of it......it is now 1:20 and i didnt finish the rest of it cuz some bit*h was seducing me in the back of my jeep. gosh i hate women

[Si_Chick]

Originally Posted by honda06si

yea i know...i had an assignment due at 11:59 in math, i finished half of it......it is now 1:20 and i didnt finish the rest of it cuz some bit*h was seducing me in the back of my jeep. gosh i hate women

It's not women, it's your priorities you should hate

[honda06si]

Originally Posted by Si_Chick

It's not women, it's your priorities you should hate

i tried!!!!!! its just been so long and she was hot and i dont know what happened but i was drunk and it was there and i was and i have no idea

[Si_Chick]

^ aww it's okay... if it had been a while I'd probably have done the same thing. Well, I'll be honest, I woulda made sure my assignment was done first

[honda06si]

Originally Posted by Si_Chick

^ aww it's okay... if it had been a while I'd probably have done the same thing. Well, I'll be honest, I woulda made sure my assignment was done first

ohh look we got a comedian over here....hahaha i tried to do my assingmnet but i got bored and thought oh well i only have 10 quewtons left, ill finish when ig et home....yea well im home but im 2 hours late

[Si_Chick]

not trying to make you feel bad, I was just sayin'... that kind of "stuff" (ie back seat fun) always lasts longer than you think. Time flies when you're having fun, right? So I'm not surprised you got home late

[honda06si]

Originally Posted by Si_Chick

not trying to make you feel bad, I was just sayin'... that kind of "stuff" (ie back seat fun) always lasts longer than you think. Time flies when you're having fun, right? So I'm not surprised you got home late

u are 100% ritght