Question

select the correct answer. simplify. (9x² - 8x - 3) + (2x + 8) a. 11x² - 6x - 11 b. 9x² - 6x + 5 c. 9x² + 10x - 11 d. 11x² + 10x + 5

Explanation:

Step1: Remove parentheses

Remove the parentheses from the expression: \(9x^2 - 8x - 3 + 2x + 8\)

Step2: Combine like terms

• For \(x^2\) term: Only \(9x^2\), so it remains \(9x^2\).
• For \(x\) terms: \(-8x + 2x = -6x\)
• For constant terms: \(-3 + 8 = 5\)

Combine them to get \(9x^2 - 6x + 5\)

Answer:

B. \(9x^2 - 6x + 5\)