document.write( "Question 156906: If sides of a square are lengthened by 8 centimeters, the area becomes 144 cm. Find the length of a side of the original square \n" ); document.write( "

Algebra.Com's Answer #115692 by checkley77(12844) $\"\"$ $\"About$

You can put this solution on YOUR website!
(x+8)^2=144 taking the sqrt of both sides we get:
\n" ); document.write( "x+8=sqrt144
\n" ); document.write( "x+8=12
\n" ); document.write( "x=12-8
\n" ); document.write( "x=4 cm for the original sides of the square.
\n" ); document.write( "Proof:
\n" ); document.write( "(4+8)^2=144
\n" ); document.write( "12^2=144
\n" ); document.write( "144=144
\n" ); document.write( " \n" ); document.write( "

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