document.write( "Question 30958: Please help me! I have to find the remaing roots (zeros) but I'm confused. The problem is f(x)=x^3+2x^2-3x+20. One root is there and it is -4. I have to find two more roots (zeros). I tried to work it out using synthetic division:\r
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document.write( "4/ 1 , 2 , -3 , 20\r
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document.write( "____4 , 24 , 84
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document.write( " = 1 , 6 , 21 , 104\r
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document.write( "The problem is really confusing when I type it out but I hope you can help me... \n" );
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Algebra.Com's Answer #19950 by venugopalramana(3286)![]() ![]() You can put this solution on YOUR website! Please help me! I have to find the remaing roots (zeros) but I'm confused. The problem is f(x)=x^3+2x^2-3x+20. One root is there and it is -4. \n" ); document.write( "OK ..GO AHEAD..YOU SHOULD DIVIDE WITH -4 ..NOT +4.... \n" ); document.write( " I have to find two more roots (zeros). I tried to work it out using synthetic division: \n" ); document.write( "-4|......... 1.......... , 2......... , -3.......... , 20 \n" ); document.write( "............0.............-4.............8............-20 \n" ); document.write( "--------------------------------------------------------------------------____ \n" ); document.write( ".............1............-2.............5.............0 \n" ); document.write( "ANSWER IS \n" ); document.write( "X^2-2X+5=THIS HAS IMAGINARY ROOTS.AS DISCRIMINANT IS NEGATIVE...USE QUADRATIC FORMULA... \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |