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OpenStudy (anonymous):
Explain, in complete sentences, why the expression x^2 + 16x – 48 is prime?
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OpenStudy (anonymous):
The discriminant of x2 + 16x – 48 is 16^2 - (4)(1)(-48) = 256 + 192 = 448 . Since 448 is not a perfect square, the roots (and factors) will be irrational.
OpenStudy (anonymous):
thanks again ;)
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