document.write( "Question 1039621: Please factor completely and show a detailed solution. Thank you!\r
\n" ); document.write( "\n" ); document.write( "x^4 - 23x^2 + 49
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Algebra.Com's Answer #654391 by josgarithmetic(39630)\"\" \"About 
You can put this solution on YOUR website!
\"p=x%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "\"p%5E2-23p%2B49\"\r
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\n" ); document.write( "\n" ); document.write( "That method seems not useful.\r
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\n" ); document.write( "\n" ); document.write( "Try Rational Roots Theorem and synthetic division to check roots -1, -7, 1, 7.\r
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\n" ); document.write( "\n" ); document.write( "No remainders found (synthetic divisions done on paper).
\n" ); document.write( "The polynomial does not have rational roots. Binomial factors are not found.
\n" ); document.write( "It does have four real but irrational roots. Back to the substitution for \"x%5E2\", you can find them.\r
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\n" ); document.write( "\n" ); document.write( "-
\n" ); document.write( "\"p=x%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"p%5E2-23p%2B49\"\r
\n" ); document.write( "\n" ); document.write( "\"p=%2823%2B-+3%2Asqrt%2837%29%29%2F2\"\r
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\n" ); document.write( "\n" ); document.write( "Substitute back the \"x%5E2\".\r
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\n" ); document.write( "\n" ); document.write( "\"x=0%2B-+sqrt%28%2823%2B-+3%2Asqrt%2837%29%29%2F2%29\"-----which is FOUR values; the 0 included so that the rendering on the page will work. I have not finished putting this into the final desired factored form.
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