answer this fasttttt
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(2a - 3/a + 1)(2a + 3/a + 1)
=> [(2a)-(3/a+1)][(2a)+(3/a+1)]
=> [(2a)² - (3/a + 1)²]
=> (4a²) - [9/a² + 1 + 6/a]
=> 4a² - 9/a² + 6/a + 1
=> (4a⁴ - 9 + 6a + a²)/a²
=> (4a⁴+a²+6a-9)/a²
hope it helped :)
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