### Tell us what’s happening:

Step 10

Set the value of root to None as at this point, you don’t have an approximate value yet.

### Your code so far

```
def square_root_bisection(square_target, tolerance=1e-7, max_iterations=100):
if square_target < 0:
raise ValueError('Square root of negative number is not defined in real numbers')
if square_target == 1:
root =
print(f'The square root of {square_target} is 1')
elif square_target == 0:
root = 0
# User Editable Region
print(f'The square root of {square_target} is 0')
else:
low = 0
high = max(1, square_target)
# User Editable Region
```

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### Challenge Information:

Learn the Bisection Method by Finding the Square Root of a Number - Step 10