document.write( "Question 853494: I could really use some help. (4a+7)^2 \n" ); document.write( "

Algebra.Com's Answer #514121 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Use the FOIL method,
\n" ); document.write( " $\"%284a%2B7%29%5E2=%284a%2B7%29%284a%2B7%29\"$
\n" ); document.write( "First : $\"4a%284a%29=16a%5E2\"$
\n" ); document.write( "Outer : $\"4a%287%29=28a\"$
\n" ); document.write( "Inner : $\"7%284a%29=28a\"$
\n" ); document.write( "Last : $\"7%287%29=49\"$
\n" ); document.write( " $\"%284a%2B7%29%5E2=16a%5E2%2B28a%2B28a%2B49\"$
\n" ); document.write( " $\"%284a%2B7%29%5E2=16a%5E2%2B56a%2B49\"$ \n" ); document.write( "

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