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OpenStudy (anonymous):
find the value of n such that x^2-11x+n is a perfect square trinomial
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OpenStudy (anonymous):
$$(x-c)^2=x^2-2cx+c^2$$Here we have \(2c=11\) so \(c=11/2\) and \(n=c^2=121/4\)
OpenStudy (anonymous):
\[\sqrt{k-4=11}\]
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