Help me with "float", pleeeaaase)))

Question

palls =[1,2,3,4,5,6,7]
for x in palls:
if 5*x**2+3*x+4==58:
print (x)

this is my code(it is on start, i didn't. finish it). I want to make code, which can solve different equations, but I want that programm print only 1, 9, 235... I'd like if it can print X like 31.45; 89.4; 2.0

So how can I use float with "palls", and I'd like if palls would be all numbers, from -1999.8000098 to 28990.0001148(f.e.), please help me, because my skills are not very good and I need help.

Answer 1

Please explain yourself clearly I dont understand

Answer 2

Even me also didn't understand

Answer 3

I want to make list of all numbers. Numbers like -12, -5... ; 0.89; 189. I dont know how to use float to get this list.