A subject about quadratic function of relation between root and coefficient Given that a and B are two different roots of the equation x + x-2011 = 0, what is the square of the algebraic formula a + 2A + B equal to?

a+b=-1,a+1=-b
ab=-2011
a^2+2a+b=a^2+a+a+b=a(a+1)+(a+b)=-ab-1=2011-1=2010

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