Use the Distributive Property to find which expression is equivalent to 9x^2–25.

A. (3x+5)^2
B. (4.5x+12.5)(4.5x–12.5)
C. (3x+5)(3x–5)
D. 9x(x–25)

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
10 hours ago

To find the expression equivalent to \( 9x^2 - 25 \) using the Distributive Property, we recognize that this expression is a difference of squares, which follows the formula:

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

In this case, we can rewrite \( 9x^2 - 25 \) as follows:

\[ 9x^2 - 25 = (3x)^2 - 5^2 \]

Here, \( a = 3x \) and \( b = 5 \). According to the difference of squares formula, we can factor this expression as:

\[ (3x - 5)(3x + 5) \]

Now, let's evaluate the options:

A. \( (3x + 5)^2 \) - This is not correct. B. \( (4.5x + 12.5)(4.5x - 12.5) \) - This does not match our factorization. C. \( (3x + 5)(3x - 5) \) - This matches our factorization. D. \( 9x(x - 25) \) - This does not match our factorization.

Therefore, the correct answer is:

C. \( (3x + 5)(3x - 5) \).