document.write( "Question 1187870: degree 4, zeros -5+2i,-2 multiplicity 2 \n" ); document.write( "

Algebra.Com's Answer #818882 by math_helper(2461) $\"\"$ $\"About$

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document.write( "Each zero 'a' gives a factor 'x-a', and noting complex zeros come in
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document.write( "conjugate pairs:\r
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document.write( "(x-(-5+2i))(x-(-5-2i))*(x+2)(x+2)\r
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document.write( "... after combining the terms with complex roots, and multiplying (x+2)(x+2) ...\r
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document.write( "=  * \r
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document.write( "... after expansion and subsquent simplification ...\r
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document.write( "= \r
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document.write( "( checked on WolframAlpha:  ' factor x^4+14x^3+73x^2+156x+116 ' yields
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document.write( "  )  \n" );
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