document.write( "Question 925999: The length of a rectangle is 8 inches more than twice its width. Its area is 90 in-squared. find the length of the rectangle. \n" ); document.write( "
Algebra.Com's Answer #561981 by TimothyLamb(4379)\"\" \"About 
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L = 2w + 8
\n" ); document.write( "Lw = 90
\n" ); document.write( "---
\n" ); document.write( "Lw = 90
\n" ); document.write( "(2w + 8)w = 90
\n" ); document.write( "2ww + 8w - 90 = 0
\n" ); document.write( "---
\n" ); document.write( "the above quadratic equation is in standard form, with a=2, b=8 and c=-90
\n" ); document.write( "---
\n" ); document.write( "to solve the quadratic equation, by using the quadratic formula, copy and paste this:
\n" ); document.write( "2 8 -90
\n" ); document.write( "into this solver: https://sooeet.com/math/quadratic-equation-solver.php
\n" ); document.write( "---
\n" ); document.write( "the quadratic has two real roots at:
\n" ); document.write( "---
\n" ); document.write( "w = 5
\n" ); document.write( "w = -9
\n" ); document.write( "---
\n" ); document.write( "the negative root doesn't fit the problem statement, so use the positive root:
\n" ); document.write( "---
\n" ); document.write( "w = 5
\n" ); document.write( "L = 2w + 8
\n" ); document.write( "L = 2*5 + 8
\n" ); document.write( "L = 18
\n" ); document.write( "---
\n" ); document.write( "answer:
\n" ); document.write( "L = 18 inches
\n" ); document.write( "w = 5 inches
\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( "Solve systems of linear equations up to 6-equations 6-variables:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( "
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