document.write( "Question 1035679: I need help with factoring quadratic equations. Here is one. 10d^2+17d-20 \n" ); document.write( "
Algebra.Com's Answer #650328 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
Try every possible combination you can find. Either one of them will work or none of them will work. Factors of 10 are 1 & 10, and 2 & 5. Factors of 20 are 1 & 20, 2 & 10, 4 & 5.\r
\n" ); document.write( "\n" ); document.write( "
\r\n" );
document.write( "(x  1)(10x  20)\r\n" );
document.write( "\r\n" );
document.write( "(x  20)(10x  1)\r\n" );
document.write( "\r\n" );
document.write( "(x  2)(10x  10)\r\n" );
document.write( "\r\n" );
document.write( "(x 10)(10x 2)\r\n" );
document.write( "\r\n" );
document.write( "and several more different combinations to check...\r\n" );
document.write( "
\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "You might get tired doing that way but you will find what you need.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"ax%5E2%2Bbx%2Bc\"
\n" ); document.write( "Discriminant, \"b%5E2-4ac\"
\n" ); document.write( "Yours is \"17%5E2-4%2A10%2A%28-20%29\"
\n" ); document.write( "\"17%5E2%2B1600\"
\n" ); document.write( "\"289%2B1600\"
\n" ); document.write( "\"1889\"--------not a perfect square\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Your quadratic expression is not factorable into integer coefficients. Not rational coefficients either.\r
\n" ); document.write( "\n" ); document.write( "... \n" ); document.write( "
\n" );