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What is the answer please help

What is the answer please help-example-1
User Rabin Utam
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1 Answer

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Since both terms are perfect squares, you have to factor using the difference of squares formula where a=x and b=3

The formula for a^2-b^2 is...
(a+b)(a-b)

In this case the formula is 4(x+3)(x-3)

User Pinks
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