Python sympy subs method example with polynomials through latex

Just a brief look a the sumpy subs method, just remember Key:Value
#sympy #subs #latex
import sympy as sym
xa,yb = int(input('Enter x: ')),int(input('Enter y: '))
pa = 4*x**4-3*x**2+x*y**2-9*y**3
pb = -x**3+6*x**2*y+.8*y**3