document.write( "Question 1130918: The worlds biggest led screen is in a small mall in Bejing, China its length is ten meters more than eight times in width. the total screen area is a whooping 7,500 square meters \n" ); document.write( "

Algebra.Com's Answer #747574 by josgarithmetic(39614) $\"\"$ $\"About$

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w, width
\n" ); document.write( "8w+10,length\r
\n" ); document.write( "\n" ); document.write( " $\"w%288w%2B10%29=7500\"$
\n" ); document.write( " $\"2w%284w%2B5%29=2%2A3750\"$
\n" ); document.write( " $\"w%284w%2B5%29=3750\"$
\n" ); document.write( " $\"4w%5E2%2B5w-3750=0\"$ \r
\n" ); document.write( "\n" ); document.write( "discriminant, $\"60025=245%5E2\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"w=%28-5%2B245%29%2F8\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28w=30%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%288w%2B10=250%29\"$ \n" ); document.write( "

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