Question

(2x^{3}-x+1)-(-3x^{4}+x^{2}+x

Answer 1

(2x^{3}-x+1)-(-3x^{4}+x^{2}+x

Answer 2

You need to simplify

\[\Large (2x^{3}-x+1)-(-3x^{4}+x^{2}+x)\]

right?

Answer 3

yes

Answer 4

your first step is to distribute the negative through to get


\[\Large (2x^{3}-x+1)-(-3x^{4}+x^{2}+x)\]

\[\Large (2x^{3}-x+1)+3x^{4}-x^{2}-x\]

Answer 5

Notice how the signs of every term inside the second group change

Answer 6

The first set of parenthesis are unneeded. So we can remove them.

\[\Large 2x^{3}-x+1+3x^{4}-x^{2}-x\]

Answer 7

Now just combine like terms

Answer 8

so it would be \[3^{4}+2^{3}-x^{2}+1\]

Answer 9

right?

Answer 10

I think you meant

\[3x^{4}+2x^{3}-x^{2}+1\]

that's close

Answer 11

something is missing though

Answer 12

do i add the 2x

Answer 13

and is it -2x or +2x

Answer 14

the -x and other -x add to -2x

Answer 15

it should be

\[\Large 3x^{4}+2x^{3}-x^{2}-2x+1\]

Answer 16

okai thanks
got it

Answer 17

you're welcome