Question

add (6x^4+2x^3-9x-7)to(-12x^4-6x^3+21x+32)

Answer 1

combine like terms

Answer 2

i dont know

Answer 3

Combine the numbers that have the same type of x's, like 6x^4 with -12x^4 and that'll give you your x^4. Then you go to x^3 and do those, know what I mean?

Answer 4

yes i do

Answer 5

Let me know what you get so I can check for you :)

Answer 6

i got -14

Answer 7

Alright, so another big thing is, keep your terms separate. Keep your x^4 separate from your x^3, they never mix. and don't get rid of those x's either unless they cancel each other out. I'll give you an example.
(2x^2-3x+7)+(4x^2+6x-1)
You'll start off with the biggest x's 2x^2 and 4x^2 combine them and you get 6x^2
then you go to your next x's, -3x and 6x combine into 3x
now combine the last numbers 7 and -1 you get 6
So now you have 6x^2+3x+6

Answer 8

279

Answer 9

Here, I'll give you an outline of your problem. Then you solve and put them in order, and does your problem say x=anything? or is what you posted all of it?

6x^4-12x^4
2x^3-6x^3
-9x+21x
-7+32

Answer 10

25

Answer 11

\[x(-6x^7-4x^5+12x+25)\]

Answer 12

alright, I'll walk you through it.
6x^4-12x^4 = -6x^4
2x^3-6x^3 = -4x^3
-9x+21x = 12x
-7+32 = 25
now you gotta put all your ducks in a row.
-6x^4-4x^3+12x+25

Answer 13

thanks

Answer 14

yup :) but I've got an important question. Do you understand what I did?

Answer 15

yes i did

Answer 16

i got on my other right thanks for u