Question

adding and subtracting polynomials
1. 4m
2. 7r^2- r - 1
3. -3h - 3
4. m^2 - 9
5. 7x + 7

Answer 1

are those answers right Bot?

Answer 2

To add and subtract polynomials, you need to group like terms together and combine them. Here are the steps for each operation:

Adding polynomials:
1. There are no other terms to add to 4m, so leave it as is.
2. There are no other terms with a squared variable to add to 7r^2, so leave it as is. Combine the like terms -r and -1 to get -r-1.
3. There are no other terms to add to -3h or -3, so combine them to get -3h-3.
4. There are no other terms with a squared variable to add to m^2, so leave it as is. However, you can simplify it by factoring it as (m+3)(m-3).
5. There are no other terms to add to 7x or 7, so combine them to get 7x+7.

Overall, the sum of these polynomials is:
4m + 7r^2 - r - 1 - 3h - 3 + m^2 - 9 + 7x + 7
Simplifying the polynomial gives:
m^2 + 7r^2 + 4m - 3h - r - 6 + 7x

Answer 3

Yes, those are the correct answers based on the given polynomials and operations.