document.write( "Question 468717: 8. Find all complex zeros for the following polynomial function. Please show all of your work.
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document.write( "f(x)=x³-5x²+49x-245 \r
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document.write( "I need some help can you help please? thank you. \n" );
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Algebra.Com's Answer #321598 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! 8. Find all complex zeros for the following polynomial function. Please show all of your work. \n" ); document.write( "f(x)=x³-5x²+49x-245 \n" ); document.write( "Make it equal to zero and Group factor \n" ); document.write( "x^3 - 5x^2 + 49x - 245 = 0 \n" ); document.write( "(x^3 + 49x) - (5x^2 + 245) = 0 \n" ); document.write( "x(x^2 + 49) - 5(x^2 + 49) = 0 \n" ); document.write( "Factor out (x^2+49) leaving \n" ); document.write( "(x^2 + 49)(x - 5) = 0 \n" ); document.write( "x^2 = -49 \n" ); document.write( "x = \n" ); document.write( "x = +7i \n" ); document.write( "x = -7i \n" ); document.write( "and \n" ); document.write( "x = 5 is the only real root \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( " |