Question 1031473
Complete the square,
{{{f(x)=x^2+x+5/4}}}
{{{f(x)=(x^2+x+1/4)+5/4-1/4}}}
{{{f(x)=(x+1/2)^2+1}}}
({{{-1/2}}},{{{1}}})

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*[illustration dq8.JPG].