# Mathamania discussion

Algebra

wow, that's complicated.

Do you do that in Algebra 1 or 2? Because if it's algebra 1, then my teacher has to teach us a lot in a short amount of time.

Do you do that in Algebra 1 or 2? Because if it's algebra 1, then my teacher has to teach us a lot in a short amount of time.

OK, then my teacher has quite a it to teach us this semester...

*Joon wrote: x^3 -3x -2. I think this is it.*

Actually it's not. Remember that you are dividing x^3 - 4x + 2 by -1 + x. You also have to add 0x^2 in between the x^3 and -4x.

Oh. I thought you were dividing by 2 and -1. You need to put paranthesees around the ones you want to do first. Then you divide.

yeah, I'm in Algebra, but we do have to do a little bit of easier right now to prepare us for the 7th and 8th grade taks test (Texas Assessment of Knowledge and Skills).

it is easy. I have only gotten a 100 2 times, and the other 2 times i missed like 1.

*Elaine wrote: These are fun:*

(x^3 - 4x + 2) / (-1 + x) = ?

(^ = to the power of)

(x^3 - 4x + 2) / (-1 + x) = ?

(^ = to the power of)

So, does anyone have the answer to my problem? I could just post the answer and we could do a different one if you want.

I don't think I've learned that yet, I'm not exactly too far in my algebra 1 book, I just finished my pre-algebra book (I'm in 8th grade, so I really not to worried about finishing the book this winter, I like doing math in the summer for some odd reason :P) Elaine, what does X equal? Is it three?

Ella, X doesn't have a set equality. (^ = to the power of). You will still have Xs in the final answer. Just set it up like a division problem. x^3+0x^2-4x+2 divided by x-1. It's actually quite simple and fun once you know what to do, but don't worry about not understanding it! You'll probably learn it towards the end of Algebra 1 (Division of Polynomials). =D

*Priya wrote: "umm.. yall do easy problems..."*

Some of us are not like you Priya. Some of us like to take it easy and have fun. If you have something hard, prove it by showing me.

Yes, you asked a hard problem, but you haven't answered any yet..., but nevermind because this is suppose to be about having fun not "who can do the hardest math".

Sorry Kate, I didn't see your answer! You're really close, so I'll give it to you. The answer is:

x^2+x-3-1/x-1

You just forgot the to put the -1 over x-1. Good job!! =)

I got a different answer to the question you posted. My answer is:

-2x^3-6x^2+18x-54

or you could write it as: -2(x^3+3x^2-9x-27)

????????????????????????????????????????

x^2+x-3-1/x-1

You just forgot the to put the -1 over x-1. Good job!! =)

I got a different answer to the question you posted. My answer is:

-2x^3-6x^2+18x-54

or you could write it as: -2(x^3+3x^2-9x-27)

????????????????????????????????????????

okay. whoops.

?????????????????????????????????????????

?????????????????????????????????????????

I thought you could write the answer to your problem either way, Elaine, but maybe not...

For mine, you need to put the function F(x)=2x+6 in for x in the function g(x)=x^2-9 and then put -1 in for x in the new equation.

For mine, you need to put the function F(x)=2x+6 in for x in the function g(x)=x^2-9 and then put -1 in for x in the new equation.

Yep, you just used a remainder. I thought of that after I posted that. :)

What? Sorry, I'm confused (a common occurrence with me). :) So, did neither of us get it right?

What? Sorry, I'm confused (a common occurrence with me). :) So, did neither of us get it right?

*Edit*

I made a mistake in my directions. You are NOT putting g(x) in for the x in f(x)! You are multiplying functions f(x) and g(x) and then putting -1 in for the "x"s. I'm really sorry. I hope I haven't confused anyone too badly!

I made a mistake in my directions. You are NOT putting g(x) in for the x in f(x)! You are multiplying functions f(x) and g(x) and then putting -1 in for the "x"s. I'm really sorry. I hope I haven't confused anyone too badly!

Oh, okay, that makes much more sense. And don't worry about confusing me, Confused is my middle name! =D

Answer: -40!

That is a neat one!

Answer: -40!

That is a neat one!

Can you teach me how to do that? The ^ puts it in exponents, right? I am confused...and yes, Nicolle, we're American. At least, I think.(I am!!)

I was just curious as i think your school years are different. How old are you all and if your at school, what year are you in? x

Well, I am in 8th grade and I am turning 14 in 3 days. I love math and love trying to figure it out.

Find the G.C.F of 5(x+2) + 23(x+2) Can't guarantee if it will come out right.

Find the G.C.F of 5(x+2) + 23(x+2) Can't guarantee if it will come out right.

message 1:by Joon, Math genius(last edited Jan 24, 2009 02:20PM) (new)(52x + 32y)/(26x - 28y) Round to the nearest hundreth.

x=e and y=23.65