If you factor x2 - 3x - 10, you'll get (x-5) (x+2). If your equation is x2 - 3x -10 = 0, then x = 5, and x = -2.
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x2 - 3X - 10 = (X - 5)(X + 2)So, (X2 - 3X -10) / (X-5) = X + 2
3x=10 x=10/3
1 and 2
If you mean x2-3x+5 then the answer is none because its discriminant is less than zero
x^2+3x-18=0 (x+6)(x-3)=0