Question

PLEASE I NEED HELP

Answer 1

Which of the following shows that polynomials are closed under addition when two polynomials 4x + 6 and 2x2 − 8x − 4 are added?

2x2 − 4x + 2 will be a polynomial

2x2 − 4x + 2 may or may not be a polynomial

2x2 − 12x − 10 will be a polynomial

2x2 − 12x − 10 may or may not be a polynomial

Answer 2

Which of the following shows that polynomials are closed under addition when two polynomials 4x + 6 and 2x2 − 8x − 4 are added?

2x^2 − 4x + 2 will be a polynomial

2x^2 − 4x + 2 may or may not be a polynomial

2x^2 − 12x − 10 will be a polynomial

2x^2 − 12x − 10 may or may not be a polynomial

Answer 3

Sorry second one is what I meant

Answer 4

You doing this on FLVS?

Answer 5

It should be A, right?

Answer 6

I think I know this, but I keep getting them wrong..

Answer 7

I'm just looking for an explanation on this problem, and why it is or isn't A cause I want to understand

Answer 8

I'm thinking B, but do not take my word on it. Been a while since I've done polynomials

Answer 9

Polynomials are a specific type of mathematical expression that has all of the following:

One or more terms
Variables with only positive whole number exponents
No variables in the denominators of any term

Answer 10

So shouldn't it be A?

Answer 11

Hang on I'm looking over it

Answer 12

Kay, thanks a ton :)

Answer 13

Don't submit it yet

Answer 14

I won't, I am looking for help on a few more too if that's okay.

Answer 15

Perfectly ok

Answer 16

Awesome, you want the next one?

Answer 17

yeah, I'll try my best.

Answer 18

Simplify the following expression: (x + 6y) - (3x - 10y). If the final answer is written in the form Ax + By, what is the value of A?

Answer 19

Shouldn't be -2?...

Answer 20

Ok, so I'm sure C and D for your first question aren't correct

Answer 21

Yeah, me too..

Answer 22

Yes, the answer is -2

Answer 23

Yeah, sorry I kind of stated the obvious for the first question

Answer 24

okay thanks a ton.. I don't know why i keep getting 20% on these I think I have got this, it must be cheating me.. anyway! Here's the other one :/

Answer 25

A sports company conducted a road test of a new model of a geared bike. The test rider cycled (3x - 2) miles on a flat road, (x2 - 5) miles uphill, and (2x + 7) miles downhill. Which simplified expression is equivalent to the total distance, in miles, for which the bike was tested?

x2 - x

x2 + 5x

x2 - x + 14

x2 + 5x + 14

Answer 26

I believe it's B... like almost certain but I did get this kind of question wrong last time so..

Answer 27

Ok, hang on. Sorry I have a few tabs open and I didn't get any notifications from this tab

Answer 28

It's cool I know ALLLLL about multiple tab problems ahahaha :)

Answer 29

Did you get B wrong last time?

Answer 30

B seems correct to me.

Answer 31

It wasn't the same question, just a similar one

Answer 32

Ah. Well like I said, B seems correct.

Answer 33

Okay these are just the last few.. bare with me

Answer 34

Ok

Answer 35

Simplify the following expression: (5x2 + 3x + 4) - (2x2 - 6x + 3). If the final answer is written in the form Ax2 + Bx + C, what is the value of B?

Answer 36

Can we continue on a different page?

Answer 37

I'm really positive this is -3... but I got it wrong last time, and yeah we can just right after this one

Answer 38

Make a new question and tag me. I'll answer it there. Ok?

Answer 39

kay