Does a Quadratic Equation with integral coefficients have integral roots?

Asked by  | 25th Nov, 2012, 08:22: PM

Expert Answer:

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.

Answered by  | 28th Nov, 2012, 10:58: AM

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