Respuesta :
Answer:
h(x)=(x+5)^2-18
Step-by-step explanation:
we know that
A quadratic function (vertical parabola) written in vertex form is equal to
y=(x-h)^{2}+k
where
(h,k) is the vertex of the parabola
we have
h(x)=7+10x+x^2
Convert to vertex form
Group terms that contain the same variable, and move the constant to the opposite side of the equation
h(x)-7=x^2+10x
Complete the square. Remember to balance the equation by adding the same constants to each side
h(x)-7+25=(x^2+10x+25)
h(x)+18=(x^2+10x+25)
Rewrite as perfect squares
h(x)+18=(x+5)^2
h(x)=(x+5)^2-18 ----> equation in vertex form
The vertex is the point (-5,-18)