What is 86 over 5 as a mixed number in simplest form

In which form is the following function written? y = - 2(x – 3)(x + 5)

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

If f(x) = 4 - x2 and g(x) = 6x, which expression is equivalent to (g-f)(3)? 06-3-(4 + 3)2 06-3-(4-33 6(3) - 4 +32 6(3) -4 -32