(6a2+5b2-2c2)+(3a2-5b2-5c2
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Answered by
2
Step-by-step explanation:
6a²+5b²-2c²+3a²-5b²-5c²
=3a²-7c²
Answered by
1
Answer:
3a²-7c²
Step-by-step explanation:
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