document.write( "Question 240697: Solve x2 - 2x - 8 = 0 by graphing. The x intercepts are ? and ?. \n" ); document.write( "
Algebra.Com's Answer #176354 by rapaljer(4671)![]() ![]() You can put this solution on YOUR website! Graph y=x^2 -2x-8 with a calculator.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "As you can see, the x-intercepts are at x=-2 and x=4.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This can also be determined algebraically by letting y=0 and solving \n" ); document.write( "0=x^2-2x-8 \n" ); document.write( "0=(x-4)(x+2) \n" ); document.write( "x=4 or x=-2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Dr. Robert J. Rapalje, Retired \n" ); document.write( "Seminole State College of Florida \n" ); document.write( "Altamonte Springs Campus \n" ); document.write( " |