Final answer:
The product of (x + 3)² is found by squaring the binomial, resulting in x² + 6x + 9, which corresponds to option A in the provided choices.
Step-by-step explanation:
To find the product of (x + 3)², we need to expand the expression by multiplying (x + 3) by itself. This process is known as squaring a binomial.
Here is the step-by-step expansion:
- (x + 3) (x + 3)
- = x*x + x*3 + 3*x + 3*3
- = x² + 3x + 3x + 9
- = x² + 6x + 9
Therefore, the product of (x + 3)² is x² + 6x + 9, and the correct answer is option A) x² + 6x + 9.