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Need help..................

Need help..................-example-1

1 Answer

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Answer:

(4-7x)(4+7x)

Explanation:

This is a difference of squares. (16 is the square of 4, 49x^2 is the square of 7x.)

The formula for difference of squares is a^2 - b^2 = (a-b)(a+b)

16 - 49^2 = (4-7x)(4+7x)

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