document.write( "Question 176960This question is from textbook
\n" ); document.write( ": Multiply: (a-2b)(a+2b) \n" ); document.write( "
Algebra.Com's Answer #132663 by dini(5)\"\" \"About 
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(a-2b)*(a+2b)
\n" ); document.write( "=a^2+2ba-2ba-(2b)^2
\n" ); document.write( "=a^2-4b^2
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