Question

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Answer 1

Answer:

$(a+2b^{2} )(a-2b^2)$

Step-by-step explanation:

You have what is called "perfect squares" so you can use the "difference of squares formula to factor:

$a^2-b^2=(a+b)(a-b)$

So,

$a^2-(2b^2)^2$

you can work the equation backward now and you will get your original equation.