Sun November 25, 2012 By:

Does a Quadratic Equation with integral coefficients have integral roots?

Expert Reply
Wed November 28, 2012
It is not neccesary because a quadratic with integral coefficient has an integral root or not will depend on discriminant , whether it is a perfect square or not and along with that (-b+D^(1/2))&(-b-D^(1/2)) should be a multiple of 2a.
Ex: equation X^2+3X+1=0 has integral coefficient but not integral roots.
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