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21-05-2020
Mathematics

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What’s the answer to this

Whats the answer to this class=

Respuesta :

21-05-2020

Answer:

C

Step-by-step explanation:

(a+b)² = a² + 2ab + b²

example : (5+2)² = 5² + 2.5.2 + 2² = 49

9x² + 6x + 1

9x² = (3x)²

1 = 1²

6x = 2.3x.1

So => 9x² + 6x + 1 => (3x + 1)²

Hope this helps ^-^

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