document.write( "Question 466722: the perimeter and area of rectangle are 22cm are 30cm square respectively. find the length and breath of the rectangle \n" ); document.write( "
Algebra.Com's Answer #320282 by ankor@dixie-net.com(22740)\"\" \"About 
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the perimeter and area of rectangle are 22cm are 30cm square respectively.
\n" ); document.write( " find the length and breath of the rectangle
\n" ); document.write( ":
\n" ); document.write( "Perimeter
\n" ); document.write( "2L + 2W = 22
\n" ); document.write( "Simplify divide be 2
\n" ); document.write( "L + W = 11
\n" ); document.write( "L = (11-W)
\n" ); document.write( ":
\n" ); document.write( "Area
\n" ); document.write( "L * W = 30
\n" ); document.write( "Replace L with (11-W)
\n" ); document.write( "W(11-W) = 30
\n" ); document.write( "-W^2 + 11W = 30
\n" ); document.write( "-W^2 + 11W - 30 = 0
\n" ); document.write( "W^2 - 11W + 30 = 0 (multiplied by -1)
\n" ); document.write( "Factors to
\n" ); document.write( "(W-5)(W-6)
\n" ); document.write( "Two solutions
\n" ); document.write( "W = 5, then L = 6
\n" ); document.write( "W = 6, then L = 5 \n" ); document.write( "
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