If the measure of angle 3 =119 degrees,then the measure of angle 6=

f(x) = x² - x - 6

That's part 1.

2. Factor

x² - x - 6 = (x - 3)(x + 2)

(x - 3)(x + 2)

3. Find zeros

(x - 3)(x + 2) = 0

x = 3 or x = -2

4. There is no context and nothing ever makes "since."  Amateurs.

I'll guess this came from a geometry problem or something where x has to be positive.

x=3 makes sense

5. Explain each item and show work.

Not sure what they're talking about here; hopefully that's what we've done up till now.