Please help write code in scala object poly { def roots(p: (Double, Double, Double)): Option[(Double, Double)] = { // = None if p has no real roots // = Some((r1, r2)) where p(r1) == p(r2) == 0 } def deriv(p: (Double, Double, Double)): (Double, Double, Double) = // = derivative of p (which should be degree 1 def eval(a: Double, p: (Double, Double, Double)): Double = // = p(a) }