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OpenStudy (anonymous):
What are the factors of x2 - 16 ?
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OpenStudy (anonymous):
Recognize this is the difference of two squares: \[a^2 - b^2 = (a+b)(a-b)\] So therefore: \[x^2 - 4^2 = ?\]
OpenStudy (anonymous):
(x+4)(x-4)
OpenStudy (anonymous):
(x-4)(x+4)
OpenStudy (anonymous):
Correct
OpenStudy (anonymous):
yeah
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