Answer:
- 11x² + 4x + 14
Explanation:
Given
(9 - 3x²) + (- 8x² + 4x + 5) ← distribute both parenthesis by 1
= 9 - 3x² - 8x² + 4x + 5 ← collect like terms
= - 11x² + 4x + 14 ← sum of the polynomials
D.)[(-3x^2)+(-8x^2)]+4x+[9+5]
The reason this is right is because I took the quiz.
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