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The problem asks for the expression equivalent to $(x - 3)^2$.

Step-by-step solution:

1. Expand $(x - 3)^2$ using the formula for the square of a binomial: $(x - 3)^2 = x^2 - 2(3)(x) + 3^2$

2. Simplify the terms: $(x - 3)^2 = x^2 - 6x + 9$

Final Answer:

The expression equivalent to $(x - 3)^2$ is: $\boxed{B. \, x^2 - 6x + 9}$

Would you like further clarification or help with another question?

Related Questions:

1. How do you expand $(x + y)^2$ using the binomial formula?
2. What is the result of $(x + 3)(x - 3)$?
3. What are the steps to factorize $x^2 - 6x + 9$?
4. How is the formula $(a - b)^2 = a^2 - 2ab + b^2$ derived?
5. Can $(x - 3)^2$ be rewritten in vertex form? If so, how?

Tip:

Always double-check your work when expanding binomials by recombining terms to verify the result.