document.write( "Question 1183005: f(x) = 2x^3 + 11x^2 - 21x - 90. (10)
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document.write( "a. Use the rational zero test to list all possible rational zeros of f.
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document.write( "I found these to be x= 3,-5/2,-6
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document.write( "b. Write f as a product of linear factors algebraically. Show all your work
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document.write( "including synthetic division. \n" );
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Algebra.Com's Answer #813138 by ikleyn(52781)![]() ![]() You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You correctly determined the roots.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I have checked it by direct substitution and calculation.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "As soon as you know all the roots, you can write the linear decomposition as \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " f(x) = 2*(x-3)*(x+5/2)*(x+6) = (x-3)*(2x+5)*(x+6). ANSWER\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Solved.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |