document.write( "Question 1208160: \"cross%28Is%29\"If x^2 + 5x + 7 is prime, show the \"cross%28prove%29\"proof. \n" ); document.write( "
Algebra.Com's Answer #846382 by mccravyedwin(407)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "It is obvious that this is a middle school student, Ikleyn, not a junior in \r\n" );
document.write( "college. No junior in college is going to post a simple quadratic like\r\n" );
document.write( "x^2 + 5x + 7.\r\n" );
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document.write( "I googled \"proving that a polynomial is prime\", and that told me that this is\r\n" );
document.write( "an introductory middle school student in beginning factoring. Link to this video\r\n" );
document.write( "will reveal what they're doing these days in middle school.\r\n" );
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document.write( "https://www.nagwa.com/en/videos/608139257981/#:~:text=In%20order%20to%20determine%20whether,%F0%9D%91%A5%20squared%20equal%20to%20one.\r\n" );
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document.write( "Go there are watch the video for kids in middle school.  It is verbatim with\r\n" );
document.write( "what I posted above only with a different simple quadratic.\r\n" );
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document.write( "Ikleyn over-judged the maturity of this student.  If the student were an\r\n" );
document.write( "advanced student, the question would be concerning prime and factorizable\r\n" );
document.write( "general polynomials over rings, not a simple monic quadratic.  \r\n" );
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document.write( "Edwin
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