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What is the simplified expression for 3y2 - 6yz - 7+4y2 - 4yz+2 - y2z?

y2 - y2z - 10yz - 5

y2 - y2z - 5yz - 5

7y2 - y2z - 10yz - 5

7y2 - y2z - 2yz - 5

1 Answer

5 votes


3y {}^(2) - 6yz - 7 + 4 {y}^(2) - \\ \: 4yz + 2 - y {}^(2) z \\

3 {y}^(2) + 4y {}^(2) - 6yz + 4yz \\ - 7 + 2 - {y}^(2) z

7 {y}^(2) - 10yz - {y}^(2) z - 5
The answer is the 2nd one from the bottom.
7y2 - y2z - 10yz -5
User Spinkoo
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