document.write( "Question 197839: Please help me with this multiple choice question:
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document.write( " Which quadratic equation has the roots 3+i and 3-i?\r
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document.write( " a) x^2 + 6x-10 = 0 b) x^2 + 6x + 8= 0 c) x^2 - 6x+10 = 0 d) x^2- 6x-8 =0\r
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document.write( " thank you! \n" );
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Algebra.Com's Answer #148332 by solver91311(24713)![]() ![]() You can put this solution on YOUR website! \r \n" ); document.write( "\n" ); document.write( "If a quadratic equation has roots \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "are the factors of the polynomial that you are looking for. Just multiply it out and collect like terms to find the appropriate quadratic polynomial. Hint: Consider 3 + i and 3 - i as single numbers and use FOIL. The product of those two numbers will be the difference of two squares. Also remember that \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "John \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |