bisec

def f(x):
    return x**5 - x**3 + 3*x - 5

LIMIT = 50
EPSILON = 10**-5
a = 1
b = 2
c = (a+b)/2
qt = 1

while (qt < LIMIT and f(a)*f(b) < 0 and not(-EPSILON <= f(c) <= EPSILON)):
    c = (a+b)/2
    qt += 1
    if (f(a) * f(c) > 0):
        a = c
    else:
        b = c
print(c)