document.write( "Question 301130: Hello. I am struggling with this equation - (2√7+3)(3√7-4) I know that we are supposed to FOIL so when I worked the problem this is what I got 6√7-8√7+9√7-12 cant be the right method because the book says the answer is 30+√7. Can someone tell me what I'm doing wrong? Thanks in advance :) \n" ); document.write( "

Algebra.Com's Answer #215935 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
(2√7+3)(3√7-4)
\n" ); document.write( "FOIL
\n" ); document.write( " $\"6%287%29+-+8sqrt%287%29+%2B+9sqrt%287%29+-+12\"$
\n" ); document.write( ":
\n" ); document.write( "combine the middle terms
\n" ); document.write( " $\"42+-+12+%2B+sqrt%287%29\"$
\n" ); document.write( ":
\n" ); document.write( " $\"30+%2B+sqrt%287%29\"$
\n" ); document.write( " \n" ); document.write( "

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