document.write( "Question 820921: the base of a triangle is 4 inches less than twice its height. if the area of the triangle is 360 square inches, what is the base of the triangle? \n" ); document.write( "
Algebra.Com's Answer #493780 by TimothyLamb(4379)\"\" \"About 
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\n" ); document.write( "h = x
\n" ); document.write( "b = 2x - 4
\n" ); document.write( "360 = (2x - 4)x/2
\n" ); document.write( "720 = (2x - 4)x
\n" ); document.write( "2xx - 4x - 720 = 0
\n" ); document.write( "---
\n" ); document.write( "the above quadratic equation is in standard form, with a=2, b=-4, and c=-720
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\n" ); document.write( "to solve the quadratic equation, by using the quadratic formula, copy and paste this:
\n" ); document.write( "2 -4 -720
\n" ); document.write( "into this solver: 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( "x = 20
\n" ); document.write( "x = -18
\n" ); document.write( "---
\n" ); document.write( "b = 2x - 4
\n" ); document.write( "b = 2(20) - 4
\n" ); document.write( "---
\n" ); document.write( "answer:
\n" ); document.write( "base = 36 in
\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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