Question

solve this step by step​

Answer 1

Step-by-step explanation:

Just solve it by opening brackets... i mean by multiply it with variables

During multiplication make sure you put the correct signs

Once you multiply you will find common variables.. where you can cancel some variables depending on signs.

If I give the direct solution, it will be much easier to copy but it will be difficult to understand the sum later.

Sorry if it did not help you!

Answer 2

(x^3+xy^2-xz^2)+(-yx^2-y^3+yz^2)-(zx^2+zy^2-z^3)

= x^3+xy^2-xz^2-yx^2-y^3+yz^2-zx^2-zy^2+z^3

=x^3 -y^3+z^3+xy^2-xz^2-yx^2+yz^2-zx^2-zy^2