isolate function is not providing multiple solutions to a polynomial problem?

I used the "isolate function" as per matlab documentation, https://in.mathworks.com/help/symbolic/sym.isolate.html

The first example shown for isolating 'x' from a quadratic equation gives only one root as output. Can someone explain how to get other root of quadratic as output?

Isolate Variable in Equation

Isolate x in the equation a*x^2 + b*x + c == 0.

----------------------------------------------------------------------------

syms x a b c

eqn = a*x^2 + b*x + c == 0;

xSol = isolate(eqn, x)

-----------------------------------------------

xSol =

x == -(b + (b^2 - 4*a*c)^(1/2))/(2*a)

Answer 1

[Star Strider]

Apparently isolate does not, however solve does —

syms x a b c
eqn = a*x^2 + b*x + c == 0;
xSol = solve(eqn, x)

pretty(xSol)

/             2          \
|   b + sqrt(b  - 4 a c) |
| - -------------------- |
|            2 a         |
|                        |
|             2          |
|   b - sqrt(b  - 4 a c) |
| - -------------------- |
\            2 a         /

.