Question

Add 7yz-9zy² + 12x²y - xy² and -9zx + 3y ² - 10x²-3xy ² ​

Answer 1

Answer:

7yz-9zx-10x²+3y²-4xy²-9zy²+12x²y

Step-by-step explanation:

7yz-1xy²-9zy² + 12x²y

-9zx + 3y ²- 10x²-3xy ²

___________________________

7yz-9zx-10x²+3y²-4xy²-9zy²+12x²y

___________________________

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