Posted by Anonymous on Saturday, May 5, 2012 at 8:47pm.
x^2+8x+3
64-12=52/4=13
(x+4-sqrt13)(x+4+sqrt13)
checking,
x^2+4x+x*sqrt13+4x+4sqrt13+16-xsqrt13-4sqrt13-13
x^2 +x(+sqrt13+8-sqrt13)+16-13=
x^2+8x+3
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