Root

class Root1(Scene):
    def construct(self):

        root = Root("x", "n")
        self.add(root)

        root.index.set_color(RED)
        root.symbol.set_color(LIGHT_BROWN)
        root.radicand.set_color(BLUE)

Root Equation Operation

class Root2(Scene):
    def construct(self):

        tex = MathTex(Term("A", 2), "=", "B")
        self.add(tex).wait(1)

        tex.RHS = MathTex("\pm", Root(tex.RHS))
        tex.LHS = tex.LHS.term

        self.play(TransformInStages.progress(tex, lag_ratio=0.25))

Quotient Property of Roots

class RootToFrac(Scene):
    def construct(self):

        frac = Fraction("x-1", "x+1")
        root = Root(frac)

        tex = MathTex(root)
        self.add(tex).wait(1)

        root_n = Root(frac.numerator,   symbol=root.symbol)
        root_d = Root(frac.denominator, symbol=root.symbol)

        tex.terms = [ Fraction(root_n, root_d, vinculum=frac.vinculum) ]

        self.play(TransformInStages.progress(tex))