b²-2b+1

The expression \( b^2 - 2b + 1 \) is a quadratic expression. It can be factored or rewritten in a different form.

You can factor it as follows:

\[ b^2 - 2b + 1 = (b - 1)^2 \]

This shows that the expression is a perfect square. If you need to find its value for a specific \( b \), substitute the value of \( b \) into the expression. If you have any further questions or need help with other concepts, feel free to ask!