document.write( "Question 775371: 7(x^2+8)-(2-4)
\n" ); document.write( "-------------------
\n" ); document.write( "16(x)+8
\n" ); document.write( "X= -2
\n" ); document.write( "I know I have to plug in -2 to X. However after that I'm not sure whether I have to distribute the 7 and the -1 or if I subtract them first and then distribute the result \n" ); document.write( "

Algebra.Com's Answer #472800 by Edwin McCravy(20060) $\"\"$ $\"About$

You can put this solution on YOUR website!
7(x^2+8)-(2-4)
\n" ); document.write( "-------------------
\n" ); document.write( "16(x)+8
\n" ); document.write( "

\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "If you distribute the -1, considering it as\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "you get:\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "or\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "If you subtract them first, you get\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "So it doesn't matter which you do.  However\r\n" );
document.write( "when you can combine the terms inside the\r\n" );
document.write( "parentheses, that is always shorter.\r\n" );
document.write( "The only time you MUST distribute is when \r\n" );
document.write( "a parentheses contains unlike terms, like\r\n" );
document.write( "the first parentheses.\r\n" );
document.write( "\r\n" );
document.write( "You must distribute the 7:\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "And then combine like terms:\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Now plug in -2 for x\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Divide top and bottom by 2\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Edwin

\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );