Question

Add 7xy + 5yz - 3zx, 4yz +9zx - 4y and -3x2 + 5x - 2xy​

Answer 1

Step-by-step explanation:

Your question is :-

Add 7xy + 5yz - 3zx , 4yz + 9zx - 4y and - 3xz + 5x - 2xy .

7x + 5yz - 3zx + (4yz + 9zx - 4y) + (- 3xz + 5x - 2xy)

7xy + 5yz - 3zx + 4yz + 9zx - 4y - 3xz + 5x - 2xy

By rearranging :-

7xy - 2xy + 5yz + 4yz - 3zx + 9zx - 3xz - 4y + 5x

5xy + 9yz + 3zx - 4y + 5x

answer

hope this helps you

Answer 2

Answer:

$\\ Add \: 7xy + 5yz - 3zx , 4yz + 9zx - 4y and - 3xz + 5x - 2xy . \\ </p><p></p><p> \\ 7x + 5yz - 3zx + (4yz + 9zx - 4y) + (- 3xz + 5x - 2xy) \\ </p><p></p><p> \\ 7xy + 5yz - 3zx + 4yz + 9zx - 4y - 3xz + 5x - 2xy \\ </p><p></p><p> \\ By rearranging :-</p><p> \\ </p><p>7xy - 2xy + 5yz + 4yz - 3zx + 9zx - 3xz - 4y + 5x \\ </p><p></p><p> \\ 5xy + 9yz + 3zx - 4y + 5x$