document.write( "Question 1129188: Find an nth-degree polynomial function with real coefficients satisfying the given conditions. If you are using a graphing utility, use it to graph the function and verify the real zeros and the given function value.\r
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document.write( "n=3;
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document.write( "-3 and 3+5i are zeros;
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document.write( "f (1) = 116\r
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document.write( "f(x)= \n" );
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Algebra.Com's Answer #745741 by stanbon(75887) ![]() You can put this solution on YOUR website! Find an nth-degree polynomial function with real coefficients satisfying the given conditions. If you are using a graphing utility, use it to graph the function and verify the real zeros and the given function value. \n" ); document.write( "n=3; \n" ); document.write( "-3 and 3+5i are zeros; \n" ); document.write( "f (1) = 116 \n" ); document.write( "---- \n" ); document.write( "Since the coefficients are Real Numbers 3-5i is also a zero. \n" ); document.write( "---- \n" ); document.write( "f(x) = a(x+3)(x-3-5i)(x-3+5i) \n" ); document.write( "f(x) = a(x+3)[(x-3)^2-(25i^2)] \n" ); document.write( "f(x) = a(x+3)(x^2-6x+9+625) \n" ); document.write( "---- \n" ); document.write( "Solve for \"a\":: \n" ); document.write( "116 = a(1+3)(1-6+634) \n" ); document.write( "116 = a(4)(629) \n" ); document.write( "a = 0.046 \n" ); document.write( "---- \n" ); document.write( "f(x) = 0.46(x+3)(x^2-6x+634) \n" ); document.write( "------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "------------- \n" ); document.write( " |