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4x² - 5xy + 3y?, &x? + 7xy - 6y?, -2x- 9xy + 13y?
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Answered by
1
Step-by-step explanation:
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Answered by
2
Answer:
Step-by-step explanation:
6a + 8b - 7c
- 4a + 2b + c
a - 3b - 2c
3a + 7b - 8c
= 3a + 7b - 8c
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