document.write( "Question 872940: What quadratic equation would I use to find the perimeter, length and width if the area size is 4200? \n" ); document.write( "

Algebra.Com's Answer #526537 by josgarithmetic(39617) $\"\"$ $\"About$

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x and y dimensions;
\n" ); document.write( "xy=4200 and p for perimeter is p=2x+2y.\r
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\n" ); document.write( "\n" ); document.write( "You only have enough information to make $\"highlight%28p=2%284200%2Fy%29%2B2y%29\"$ or $\"highlight%28p=2x%2B2%284200%2Fx%29%29\"$ ; or to solve each of these for y in terms of p or to solve x in terms of p. You need to know which variables are known and which variables are unknown.\r
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\n" ); document.write( "\n" ); document.write( "Either py=8400+2y^2, $\"highlight%282y%5E2-py%2B8400=0%29\"$
\n" ); document.write( "OR
\n" ); document.write( "px=2x^2+8400, $\"highlight%282x%5E2-px%2B8400=0%29\"$ \n" ); document.write( "

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