What is the value of –2(–6 + 11) • (–4)?

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

What is the following sum in simplest form? square root 8 + 3 square root 2 + square root 32

F(x)=3(1.54)^x whats this how do you do it