document.write( "Question 244688: for what values of b will the quadratic equation x^2+bx+10=0 have no real roots? \n" ); document.write( "
Algebra.Com's Answer #178947 by edjones(8007)![]() ![]() You can put this solution on YOUR website! x^2+bx+10=0 \n" ); document.write( ". \n" ); document.write( "b^2-4ac is the discriminant. It can't be less than zero and have real roots. \n" ); document.write( "a=1, c=10 \n" ); document.write( "b^2-40 discriminant \n" ); document.write( "b^2= 40 \n" ); document.write( "b=+-2sqrt(10) \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |