[Python] python jupyter simplify equality with 2 expression doesn't work and cannot put...

From this code :

Declare symbols :

from sympy import *
r,l,c=symbols('r,l,c', real=True)


The first equation :

b=sqrt(2)*sqrt((-r**2/l + 2/c)/l)/2
display(b.simplify())
display(b.subs({r:1,l:2,c:3}))




Second equation :

d=sqrt(-c**2*r**2+2*c*l)/(sqrt(2)*c*l)
display(d.simplify())
display(d.subs({r:1,l:2,c:3}))




There are equals but not here :

display(simplify(b-d) == 0)

False
​

h=simplify(b-d)
display(simplify(h))

It cannot be simplified
​

I have 2 questions :

1. How cant I get equation in 2 lines (pretty print ) like the 'd' equation ?
2. How to retrieve equality ?

Thanks

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