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Answered by
1
Answer:
answer=n²
Step-by-step explanation:
7n²-9n²+3n²
7n²+3n²-9n²
10n²-9n²
n²
Hence n² is the correct answer
Hope you will understand this step by step solution please Mark as Brainliest answer
Answered by
1
Answer:
7n² - 9n² + 3 n²
= 7n² + 3n² - 9n²
= 10n² - 9n²
= 1n²
= n²
hope it helps you!!
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