Recognise perfect square trinomials and expand them.
\( \begin{array}{l}\text{Which of the following are equivalent to } (x+3)^2\text{?}\end{array} \)
Select all correct options:
Always expand carefully and combine like terms to identify equivalent forms.
The square of a binomial: (a+b)^2 = a^2 + 2ab + b^2. Apply it to x+3.
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