document.write( "Question 1172469: correct to two decimal places the equation 4x=11x+21 using quadratic formula \n" ); document.write( "
Algebra.Com's Answer #797507 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! I will solve 4x^2=11x+21 since there needs to be a power of 2 somewhere. \n" ); document.write( "4x^2-11x-21=0 \n" ); document.write( "x=(1/8)(11+/-sqrt(121+336)); sqrt term=21.3776 \n" ); document.write( "x=(1/8)(32.3776)=4.05 \n" ); document.write( "and \n" ); document.write( "x=(1/8)(-10.3776)=-1.30 \n" ); document.write( " |