document.write( "Question 197839: Please help me with this multiple choice question:
\n" ); document.write( "
\n" ); document.write( " Which quadratic equation has the roots 3+i and 3-i?\r
\n" ); document.write( "
\n" ); document.write( "\n" ); 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
\n" ); document.write( "\n" ); document.write( " thank you!
\n" ); document.write( "

Algebra.Com's Answer #148332 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "\n" ); document.write( "If a quadratic equation has roots and , then and are factors of the quadratic polynomial, so:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\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 \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "John
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" );