Question

subtract 7xy+5yz-2zx from the sum of 4yz+9zx-4y and -3xz+5x-2xy​

Answer 1

Step-by-step explanation:

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

(4yz+6zx-4y+5x-2xy)-(7xy+5yz-2zx)

9yz+8zx-4y+5x-9xy