Question

Multiply. (3x + 5)(3x – 5)

A. 9x2 – 30x – 25
B. 9x2 + 30x + 25
C. 9x2 – 25
D. 9x2 + 25

Answer 1

The answer is C. 9x^2 - 25

Answer 2

C. 9x^2 - 25

Explanation:

We can use the formula for the product of two binomials, which is:

(a + b)(a - b) = a^2 - b^2

where a = 3x and b = 5. Substituting these values, we get:

(3x + 5)(3x - 5) = (3x)^2 - (5)^2

Simplifying further:

(3x)^2 = 9x^2

(5)^2 = 25

Therefore:

(3x + 5)(3x - 5) = 9x^2 - 25

So the answer is C. 9x^2 - 25.

Hope this helps!