Answer:
D. 4x^3 - 8x^2 + 8
Explanation:
Let's simplify the given expression step by step:
9x^3 + 5 - 8x^2 - 5x^3 + 3
Combine the like terms (terms with the same exponent):
(9x^3 - 5x^3) + (-8x^2) + (5 + 3)
4x^3 - 8x^2 + 8
So, the simplified expression is:
D. 4x^3 - 8x^2 + 8