document.write( "Question 233508: Perform the indicated operations.\r
\n" );
document.write( "\n" );
document.write( "(4x-7y)(3x+2y) \n" );
document.write( "
Algebra.Com's Answer #172374 by rapaljer(4671) You can put this solution on YOUR website! (4x-7y)(3x+2y)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This is a FOIL problem. Do you know what that means? If not, send me an Email and I'll send you a couple of links. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "F= First*First = 4x*3x=12x^2 \n" ); document.write( "O= Outer*Outer = 4x*2y=8xy \n" ); document.write( "I=Inner *Inner = -7y*3x=-21xy \n" ); document.write( "L=Last*Last = -7y*2y =-14y^2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Add them up and combine like terms: \n" ); document.write( "12x^2 +8xy-21xy -14y^2 \n" ); document.write( "12x^2 -13xy - 14y^2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Dr. Robert J. Rapalje, Retired\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |