Question

Add 3p+7z-2w and 9p-2z-8w

Answer 1

Answer:

12p+5z-10z. Mark me brainiest

Answer 2

Answer:(3p+7z-2w)+(9p-2z-8w)

=3p+7z-2w+9p-2z-8w

=3p+9p+7z-2z-2w-8w

=12p+5z-10w

Step-by-step explanation:

here 1- remove the bracket

if we remove the bracket the signs of second bracketed polynomial will not change

2- write the like terms close to each other along with their signs

3- now just add or subtract with the help of their  signs

Here we subtracted or added but we have to add the polynomials

Because we to add the 'polynomials' not the 'terms'

And also the terms have different signs