Which polynomial represents the sum below?
(-2x^3 + 4x^2 + 6) + (2x^2 + 6x + 3)
A. -x^6 + 6x^2 + 12x + 9
B. -2x^3 + 6x^2 + 6x + 9
C. -2x^5 + 10x^2 + 6x + 9
D. -2x^3 + 6x + 9

- anonymous

- chestercat

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- anonymous

Your answer should be B if you put all the common parts together you will find you can not simplify the equation any longer

- anonymous

thank you so much

- anonymous

No problem do you understand it?

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## More answers

- anonymous

yes i do now thank u

- anonymous

Which polynomial represents the sum below?
(2x^6 + 3x^2 + 9) + (3x^2 + x + 8)
this is the answer i got 5x^8 + 3x^4 + x + 17 did i do it right

- anonymous

mmbuckaroos did i do this right ?

- anonymous

Ha ha let me check sorry I was working on something else...

- anonymous

ok no problem

- anonymous

No that's not right....Here I will go through the problem step by step

- anonymous

(2x^6 + 3x^2 + 9) + (3x^2 + x + 8)
ok between both the sides what do you see in common?

- anonymous

3x^2

- anonymous

Right... so because there is nothing in common with 2x^6 I leave that then I would add the two common parts together so add 3x^2+3x^2 together and you should get 6x^2

- anonymous

Then there are no other x's so you leave the x alone. then add the 9&8 together and you should get 17.

- anonymous

ok yea now im getting it

- anonymous

Your final answer should be 2x^6+6x^2+x+17

- anonymous

Does that make sense i didn't do the best job explaining it sorry

- anonymous

yes it does now that u explained ill try another one and get back to u

- anonymous

Alright sounds like a plan Stan! Lol I'd trade that math for mine any day! lol

- anonymous

lol :)

- anonymous

6x^7+9x^3-x+9
+ 2x^7+7x^6+6
this is the answer i got is it right 8x^7+7x^6+9x^3-x+15

- anonymous

how is this one mmbuckaroos

- anonymous

ok so what is your original equation again sorry is it:
6x^7+9x^3-x+9+2x^7+7x^6+6

- anonymous

yes and the answer i got is 8x^7+7x^6+9x^3-x+15
is it right

- anonymous

Yes sir! you got it good job!

- anonymous

well thank you im proud lol :)

- anonymous

Ha ha good you should be!

- anonymous

Which polynomial represents the sum below?
(4x^2 + 3x + 4) + (-3x^6 - 4x^5 - 2x^2 + 5x)
ok the answer i got is -x6 - 4x5 + 2x2 + 8x + 4

- anonymous

close look over it again.. I think you meant -3x^6

- anonymous

oh ok sorry yea i looked it over

- anonymous

Other than that you've got this down!

- anonymous

Good job!

- anonymous

Which polynomial represents the sum below?
(18x^2 - 18) + (-13x^2 - 13x + 13)
ok well the answer i got is 5x2 - 13x - 5

- anonymous

5x^2 - 13x - 5

- anonymous

i ment that

- anonymous

Yeppers! You're on a role!

- anonymous

wow thx u oh yea:)

- anonymous

Ha ha no problem!

- anonymous

7x^8 +5x^5 - x+8
+ 5X^10 +9X+8
the answer i got is 12x16 + 4x4 + 7x + 16

- anonymous

No...make sure you have the correct original problem

- anonymous

If you do your highest power should be 5x^10 and there is nothing in common with that

- anonymous

5x10 + 7x8 + 5x5 + 8x + 16 is this the answer

- anonymous

yep!

- anonymous

sweet :)

- anonymous

Good job!

- anonymous

(x^6 + x ) + (8x^6 + 4)
the answer i got for this one it 9x^6+5

- anonymous

I have to go get a horse trimmed, but if you have anymore questions I'll be back to answer them in a while

- anonymous

ok thank you very much for your help :)

- anonymous

alright sorry about that... Your last problem would be 9x^6 +x+4

- anonymous

im here

- anonymous

do oyu see where you made your mistake on that last one?

- anonymous

*you

- anonymous

yea

- anonymous

cool beans!

- anonymous

2x^5 -3x^3 + x^2 +4
+ -3x^5 -2x^4 +x^3 +4x
the answer i got is -1x^5 + 5x^6 + 2x^5 8x+-1

- anonymous

what do you think buck

- anonymous

close
-x^5-2x^4-2x^3+x^2+4x+4

- anonymous

(5x4 - 3x2 - 2x) + (2x4 + 2x3 + 2x2 + x + 1)
i really cant get this one

- anonymous

(5x^4 - 3x^2 - 2x) + (2x^4 + 2x^3 + 2x^2 + x + 1)

- anonymous

this is the right one

- anonymous

ok give me a sec

- anonymous

ok thank you

- anonymous

what is your answer

- anonymous

i couldnt get the answer for this one

- anonymous

ok...
what do you see in common

- anonymous

3x^2 2x^3

- anonymous

mm not quite...
ok so what's the highest power and is there anything similar to it

- anonymous

4 is the highest power

- anonymous

so what is in common with 5x^4

- anonymous

2x^4

- anonymous

right so add those together to get 7x^4 then do you see anything in common with 2x^3?

- anonymous

yea 3x^2

- anonymous

No because they have a different power... only alike powers can be put together.. Comprende?

- anonymous

sorry getting tired lol

- anonymous

2x^2

- anonymous

so 2x^3 should be by itself... ha ha it's ok and 2x^2 add that to -3x^2 because they share the same power.. are you following ?

- anonymous

yup so what next

- anonymous

you should get -x^2... Next, you have the x's with out powers in common (x & -2x) so you should put those together to get -x.

- anonymous

Then the 1 is all by it's lonesome self.
Your answer should be:
7x^4+2x^3-x^2-x+1

- anonymous

thank you so much for all your help im leaveing im am tired

- anonymous

ha ha no problem anytime get some rest math wiz!

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