Question

Add: (3x4 + x2 + 2) + (9x4 - x2 + x)

Answer 1

think of this as "combine like terms"

Answer 2

but is it x4

Answer 3

\[\huge~\rm~ 3x^4 + x^2 + 2 + 9x^4 - x^2 + x\]

Answer 4

\[3x^4+9x^4=?\]

Answer 5

so it's 12x4?

Answer 6

the first term is, yes

Answer 7

then \[x^2-x^2=?\]

Answer 8

ok
the second term is x2

Answer 9

hmm no

Answer 10

what is \[x^2-x^2\]?

Answer 11

ok

Answer 12

Think of it as
\[\huge~\rm~1x^2−1x^2\]
1-1=?

Answer 13

that's 0
so the answer is x2 but you guys said no so i'm not sure

Answer 14

They cancel out

Answer 15

so war does that equal

Answer 16

0

Answer 17

Therefore we ignore it

Answer 18

and then it's x2 right?

Answer 19

\[\huge~\rm~(3x^4+9x^4)+(x^2+−x^2)+(x)+(2)\]
Ok so we have
12x^4+x+2

Answer 20

none of those are like terms so is that the answer

Answer 21

right?

Answer 22

yep

Answer 23

12x^4+x+2

Answer 24

ok thanks a lot i don't know who to give the medal to