document.write( "Question 260213: Here is a sample problem similar to the one I am having trouble with:\r
\n" ); document.write( "\n" ); document.write( "(6+4\"sqrt%287%29\")(6-4\"sqrt%287%29%29%0D%0A%0D%0Aand+this+was+my+attempt%3A%0D%0A%0D%0A%286%2B4%7B%7B%7Bsqrt%287%29\")(6-4\"sqrt%287%29\")=6^(2)-\"sqrt%287%29\"^(2)=36-7=29\r
\n" ); document.write( "\n" ); document.write( "(Correct answer is -76) But I am not sure how to get there.
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Algebra.Com's Answer #191659 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
(6+4\"sqrt%287%29\")(6-4\"sqrt%287%29%29%0D%0A%0D%0Aand+this+was+my+attempt%3A%0D%0A%0D%0A%286%2B4%7B%7B%7Bsqrt%287%29\")(6-4\"sqrt%287%29\")=6^(2)-\"sqrt%287%29\"^(2)=36-7=29\r
\n" ); document.write( "\n" ); document.write( "(Correct answer is -76)\r
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\n" ); document.write( "You show 3 binomials, I think there should be 2, and you left out the 4.
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\n" ); document.write( "\"+%286%2B4sqrt%287%29%29%2A%286-4sqrt%287%29%29+\"
\n" ); document.write( "= \"6%5E2+-+%284sqrt%287%29%29%5E2\"
\n" ); document.write( "= 36 - 16*7 = 36 - 112
\n" ); document.write( "= -76
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