document.write( "Question 1022705: please help me out my problem is:
\n" ); document.write( "If a+2b=9 and ab=7 than what is the value of aČ+4b?
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #638321 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "Solve a+2b = 9 for a, get a = 9-2b\r\n" );
document.write( "\r\n" );
document.write( "Square both sides of \r\n" );
document.write( "\r\n" );
document.write( "a+2b = 9\r\n" );
document.write( "\r\n" );
document.write( "Substitute ab=7 for ab, and (9-2b) for a\r\n" );
document.write( "\r\n" );
document.write( "Simplify, get 0 on the right side.\r\n" );
document.write( "\r\n" );
document.write( "You get a quadratic equation in b that you \r\n" );
document.write( "can divide thru by 4.\r\n" );
document.write( "\r\n" );
document.write( "Simplify\r\n" );
document.write( "\r\n" );
document.write( "The quadratic equation is factorable\r\n" );
document.write( "\r\n" );
document.write( "You get 2 solutions for b\r\n" );
document.write( "\r\n" );
document.write( "Substitute each in a = 9-2b to find two solutions for a\r\n" );
document.write( "\r\n" );
document.write( "Substitute the values of a and b in\r\n" );
document.write( "\r\n" );
document.write( "aČ+4b, and get 2 solutions.\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );