document.write( "Question 18301: If 4a²-b²=54, then 4(2a+b)(2a-b)= ?\r
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Algebra.Com's Answer #8762 by Earlsdon(6294) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"4a%5E2-+b%5E2+=+54\"$ Factor the left side.
\n" ); document.write( " $\"%282a-b%29%282a%2Bb%29+=+54\"$ Multiply both sides by 4.
\n" ); document.write( " $\"4%282a-b%29%282a%2Bb%29+=+4%2854%29\"$
\n" ); document.write( " $\"4%282a%2Bb%29%282a-b%29+=+216\"$ \n" ); document.write( "

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