Answer:
Step-by-step explanation:
1. 7x + 11
2. 11a - 7
3. 9a^2-12a-7
4. 10x^2-8x+9
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Answers & Comments
Answer:
Step-by-step explanation:
1. 7x + 11
2. 11a - 7
3. 9a^2-12a-7
4. 10x^2-8x+9