It appears there is a typographical error in the equation you provided. I assume you meant to write the equation as: F(x) = (15x^2 - 1.5x^2 - 6)/(x + 2)
To simplify the expression, we first combine like terms in the numerator: F(x) = (13.5x^2 - 6)/(x + 2)
Now, we cannot simplify this expression any further without knowing if there are any additional restrictions on the values of x.
It appears there is a typographical error in the equation you provided. I assume you meant to write the equation as:
F(x) = (15x^2 - 1.5x^2 - 6)/(x + 2)
To simplify the expression, we first combine like terms in the numerator:
F(x) = (13.5x^2 - 6)/(x + 2)
Now, we cannot simplify this expression any further without knowing if there are any additional restrictions on the values of x.