subtract 5a²_6ab_b² from 7a²+2ab=3b²
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Answer:
2a²+8ab-2b²
Step-by-step explanation:
7a²+2ab+3b² - (5a²-6ab-b²)
= 7a²+2ab+3b² - 5a²+6ab+b²
= 7a²-5a² +2ab+6ab +3b²+b²
= 2a²+8ab+4b²
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