simply
5a²-(3a-a²-4)
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Answer:
6a² - 3a + 4
Step-by-step explanation:
5a²-(3a-a²-4)
= 5a² - 3a + a² + 4
= 5a² + a² - 3a + 4
= (5+1)a² - 3a + 4
= 6a² - 3a + 4
Hope it hepls...
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