document.write( "Question 764515: What is the lowest-degree polynomial with integer coefficients and the roots 6, i, and –i?\r
\n" ); document.write( "\n" ); document.write( "A. x^3 + 6x^2 + x + 6
\n" ); document.write( "B. x^3 + 6x^2 − x − 6
\n" ); document.write( "C. x^3 − 6x^2 + x − 6
\n" ); document.write( "D. x^3 − 6x^2 − x + 6
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Algebra.Com's Answer #465520 by ankor@dixie-net.com(22740)\"\" \"About 
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What is the lowest-degree polynomial with integer coefficients
\n" ); document.write( " and the roots 6, i, and –i?
\n" ); document.write( "Two factors
\n" ); document.write( "(x-6) = 0
\n" ); document.write( "and
\n" ); document.write( "x = +/-i
\n" ); document.write( "square both sides
\n" ); document.write( "x^2 = -1
\n" ); document.write( "x^2 + 1 = 0
\n" ); document.write( ":
\n" ); document.write( "FOIL (x-6)(x^2+1)
\n" ); document.write( "x^3 + x - 6x^2 - 6
\n" ); document.write( "in order
\n" ); document.write( "x^3 - 6x^2 + x - 6
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