document.write( "Question 45040This question is from textbook
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document.write( ": The degree three polynomial f(x) with real coefficients and leading coefficient 1, has 4 and 3 + i among its roots. Express f(x) as a product of linear and quadratic polynomials with real coefficients.\r
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document.write( "My answer is f(x)=(x-4)(x^2-6x+9). \r
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document.write( "Thanks. \n" );
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Algebra.Com's Answer #29852 by Nate(3500)![]() ![]() ![]() You can put this solution on YOUR website! (x - (3 + i))(x - (3 - i)) \n" ); document.write( "((x - 3) + i)((x - 3) - i) \n" ); document.write( "(x - 3)^2 + (x - 3)i - (x - 3)i - i^2 \n" ); document.write( "x^2 - 6x + 9 - (-1) \n" ); document.write( "x^2 - 6x + 10 \n" ); document.write( "then: \n" ); document.write( "(x^2 - 6x + 10)(x - 4) = f(x) \n" ); document.write( " |