Final answer:
To subtract -3xy + 5yz - 7zx from 5xy - 2yz - 2zx + 10xyz, we subtract each corresponding term, resulting in 8xy - 7yz + 5zx.
Step-by-step explanation:
To subtract -3xy + 5yz - 7zx from 5xy - 2yz - 2zx + 10xyz, we need to subtract each corresponding term. Starting with the x terms, we have 5xy - (-3xy) = 5xy + 3xy = 8xy.
Next, for the y terms, we have -2yz - 5yz = -7yz.
Finally, for the z terms, we have -2zx - (-7zx) = -2zx + 7zx = 5zx.
Combining these results, we have 8xy - 7yz + 5zx.
Learn more about subtracting polynomials