Problem:

Find an indefinite integral (which can vary by a constant) of the following function:

$-\frac{18 x^2}{\sqrt{1-\left(6 x^3+1\right)^2}}$

from sympy import *

x = symbols('x')
f = -((18*x**2)/(sqrt(1-(6*x**3+1)**2)))
print(integrate(f, x))
