To solve this we just need a polynomial where the roots can be -10 so in (x -/+ N) The Ns must equal -10 We also know there must be at least a degree of 2 or higher, so we want X^3 or 3 roots. Given this we can construct our function;
H(x) = (X-2)(X+5)(X+1) 1*5*-2 = -10 So multiplying that out to get the standard form X^2-2X+5X-10(X+1) Simplifying to X^2 +3X-10(X+1) X^3+3X^2-10X + X^2 +3X -10 Which simplifies to: X^3+4X^2-7X-10