Instructions: Simplify the polynomial expression.(5−5x2−x)−(6x−4x2−3)(5−5𝑥2−𝑥)−(6𝑥−4𝑥2−3)Answer:

First, let's rewrite the expression to make it clearer:

(5 - 5x² - x) - (6x - 4x² - 3)

Next, distribute the negative sign to the terms in the second parentheses:

5 - 5x² - x - 6x + 4x² + 3

Then, combine like terms:

(5 + 3) + (-5x² + 4x²) + (-x - 6x)

This simplifies to:

8 - x² - 7x

So, the simplified form of the given polynomial expression is 8 - x² - 7x.