dakotablakley dakotablakley

17-01-2022
Mathematics

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xenia168 xenia168

17-01-2022

Answer:

n = - 2

Step-by-step explanation:

( a ± b )² = a² ± 2ab + b²

~~~~~~~~~~~

n² + 4n + 4 = ( n + 2 )² = 0 ⇒ n = - 2

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