Digital PSAT Math Practice Question 260: Answer and Explanation

Question: 260

is equivalent to which of the following expressions?

• A. 3x² - 30x
• B. 6x² - 5x
• C. x² + 15x
• D. x² - 15x

Correct Answer: D

Explanation:

(D) The 3x must be distributed to both the term and the - 5 term:

Then, the fraction can be reduced, giving x² - 15x, choice (D).