Question

Factor this polynomial expression.

3x2 + 30x+75
O A. 3(x - 5)(x+5)
O B. (3x + 5)(x+ 15)
O C. 3(x - 5)(x - 5)
O D. 3(x + 5)(x+5)

Answer 1

D: 3(x + 5)(x + 5)

Explanation:

Try multiplying the last answer choice (D); the result is 3(x^2 + 10x + 25), or

3(x + 5)(x + 5).