document.write( "Question 941643: if a side of a square is increased by 6 units, its area is 100 sq units. What is the length of a side of the square? \n" ); document.write( "
Algebra.Com's Answer #574036 by TimothyLamb(4379)\"\" \"About 
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x = length of side (units)
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\n" ); document.write( "(x + 6)(x + 6) = 100
\n" ); document.write( "xx + 12x + 36 - 100 = 0
\n" ); document.write( "xx + 12x - 64 = 0
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\n" ); document.write( "the above quadratic equation is in standard form, with a=1, b=12 and c=-64
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\n" ); document.write( "to solve the quadratic equation, by using the quadratic formula, copy and paste this:
\n" ); document.write( "1 12 -64
\n" ); document.write( "into this solver: https://sooeet.com/math/quadratic-equation-solver.php
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\n" ); document.write( "the quadratic has two real roots at:
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\n" ); document.write( "x = 4
\n" ); document.write( "x = -16
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\n" ); document.write( "the negative root doesn't fit the problem statement, so use the positive root:
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\n" ); document.write( "answer:
\n" ); document.write( "x = 4
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\n" ); document.write( "Solve and graph linear equations:
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\n" ); document.write( "Solve quadratic equations with quadratic formula:
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\n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables:
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