# Question #ab2af

Jan 23, 2018

See below.

#### Explanation:

Let's say we have the function $f \left(x\right) = {x}^{2} + 4 x + 4$.
Now flip the leading variable, here ${x}^{2}$. Basically, make it negative: $- {x}^{2}$. To make it flip exactly, multiply the function by $- 1$.
So now we've got $f \left(x\right) = - {x}^{2} - 4 x - 4$