Question 980329
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x=length of side of square
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{{{(16in-x)(26in-x)=200in^2}}}
{{{x^2-42x+416=200}}} Subtract 200 from each side.
{{{x^2-42x+216=0}}} 
{{{(x-6)(x-36)=0}}}
{{{x-6=0}}} {{{OR}}} {{{x-36=0}}}
{{{x=6}}} {{{OR}}} {{{x=36}}}
Since in our case, x=36 in makes no sense, the correct answer is x=6.
ANSWER: The length of each side of the square should be 6 inches.