document.write( "Question 819421: The length of a rectangle is 3 feet longer than twice the width. If the area is 54 square feet, find the dimensions of the rectangle. \n" ); document.write( "
Algebra.Com's Answer #493093 by TimothyLamb(4379)\"\" \"About 
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L = 2w + 3
\n" ); document.write( "Lw = 54
\n" ); document.write( "(2w + 3)w = 54
\n" ); document.write( "2ww + 3w - 54 = 0
\n" ); document.write( "---
\n" ); document.write( "the above quadratic equation is in standard form, with a=2, b=3, and c=-54
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\n" ); document.write( "to solve the quadratic equation, by using the quadratic formula, plug this:
\n" ); document.write( "2 3 -54
\n" ); document.write( "into this: https://sooeet.com/math/quadratic-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "the two real roots (i.e. the two x-intercepts), of the quadratic are:
\n" ); document.write( "w = 4.5
\n" ); document.write( "w = -6
\n" ); document.write( "---
\n" ); document.write( "negative width doesn't make sense, so use the positive root
\n" ); document.write( "---
\n" ); document.write( "w = 4.5 ft
\n" ); document.write( "L = 12 ft
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\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
\n" ); document.write( "---
\n" ); document.write( "Calculate and graph the linear regression of any data set:
\n" ); document.write( "https://sooeet.com/math/linear-regression.php \n" ); document.write( "
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