document.write( "Question 31972: Solve the following quadratic equations by using an optimum method.\r
\n" );
document.write( "\n" );
document.write( "x^2 - 9x - 4 = 6\r
\n" );
document.write( "\n" );
document.write( "Please help.\r
\n" );
document.write( "\n" );
document.write( "Thank you. \n" );
document.write( "
Algebra.Com's Answer #18514 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Subtract \"6\" from both sides of the equation to get: \n" ); document.write( "x^2-9x-10=0 \n" ); document.write( "Factor to get: \n" ); document.write( "(x-10)(x+1)=0 \n" ); document.write( "Then either x-10=0 or x+1=0 \n" ); document.write( "So, either x=10 or x=-1 \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |