document.write( "Question 163922: (2√7-4√3)(4√+8√3) =?? \n" ); document.write( "

Algebra.Com's Answer #120785 by stanbon(75887) $\"\"$ $\"About$

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(2√7-4√3)(4√7+8√3) =??
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\n" ); document.write( "Use FOIL:
\n" ); document.write( "F: 8*7 = 56
\n" ); document.write( "O: 16sqrt(21)
\n" ); document.write( "I: -16sqrt(21)
\n" ); document.write( "L: -32*3 = -96
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\n" ); document.write( "Combine to get: -40
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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