document.write( "Question 815536: The width of a rectangular room is 3 feet less than the length. If the area of the room is 70 square feet, find the length and width of the room. \n" ); document.write( "
Algebra.Com's Answer #491022 by TimothyLamb(4379)\"\" \"About 
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w = L - 3
\n" ); document.write( "Lw = 70
\n" ); document.write( "---
\n" ); document.write( "Lw = 70
\n" ); document.write( "L(L - 3) = 70
\n" ); document.write( "LL - 3L = 70
\n" ); document.write( "LL - 3L - 70 = 0
\n" ); document.write( "---
\n" ); document.write( "the above quadratic equation is in standard form, with a=1, b=-3, and c=-70
\n" ); document.write( "---
\n" ); document.write( "to solve the quadratic equation, plug this:
\n" ); document.write( "1 -3 -70
\n" ); document.write( "into this: https://sooeet.com/math/quadratic-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "the roots of the quadratic are:
\n" ); document.write( "10
\n" ); document.write( "-7
\n" ); document.write( "---
\n" ); document.write( "the negative root doesn't make sense for a length, so use the positive root:
\n" ); document.write( "---
\n" ); document.write( "L = 10
\n" ); document.write( "w = 7
\n" ); document.write( "---
\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( "Convert fractions, decimals, and percents:
\n" ); document.write( "https://sooeet.com/math/fraction-decimal-percent.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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