Question

(3*z^3+7*z^2-x)+(-3z^2+z+7)

Answer 1

It looks like you are trying to simplify a polynomial expression. I can help you with that. The answer is:

Explanation:

`3z^3+4z^2+z+6-x`

To get this answer, you need to combine the like terms of the two polynomials. Like terms are terms that have the same variable and exponent. For example,

`7z^2`

and

`-3z^2`

are like terms, but

`3z^3`

and

`z`

are not.

To simplify the expression, you need to add the coefficients of the like terms. The coefficient is the number in front of the variable. For example, the coefficient of

`7z^2`

is 7, and the coefficient of

`-x`

is -1.

Here is how you can simplify the expression step by step:

`(3z^3+7z^2-x)+(-3z^2+z+7)`

`=3z^3+(7z^2-3z^2)+(-x+z)+(7)`

`=3z^3+4z^2+z+6-x`