document.write( "Question 1037105: form a polynomial f(x) with real coefficients having the given degree and zeros:\r
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document.write( "degree 5; zeros 7; -i; -7+i \n" );
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Algebra.Com's Answer #651831 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! factor of (x-5) is one. \n" ); document.write( "factor (x^2+1) are two more \n" ); document.write( "-7+i,-i -7-i ,-7+i are all factors \n" ); document.write( "x^2+7x+c, which will give a root of (1/2)(-7+/- sqrt(49-4c)). I need to make this -14+/- sqrt(196-4(1)(50)) \n" ); document.write( "That will make the discriminant -4 and the square root +/-2i. Divide that by 2 and get i. \n" ); document.write( "Therefore, the last quadratic factor is x^2+14x+50. \n" ); document.write( "Their product is the function: x^5+7x^4-47x^3+343x^2-48x-350 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |